Sahih Muslim: The Companion Collection

The second of the canonical hadith collections. Imam Muslim's distinctive methodology, the specific contributions his collection makes, and how it complements al-Bukhari to form the foundation of Sunni hadith literature.

The Place of the Collection

Imam Muslim ibn al-Hajjaj al-Naysaburi's al-Musnad al-Sahih — universally called Sahih Muslim — is the second of the two canonical Sunni hadith collections. Together with Sahih al-Bukhari, it forms what classical scholars call al-Sahihayn (the two authentic collections). When a hadith is reported in both, scholars often say it is muttafaqun alayh (agreed upon), a designation that places it at the highest tier of authenticity in the classical hadith hierarchy.

Imam Muslim (206–261 AH) was a younger contemporary of al-Bukhari. He studied with al-Bukhari and considered him a teacher, though he himself was a major scholar in his own right. The relationship between the two collections reflects this — Muslim drew on similar sources, applied similar methodology, and produced a collection that overlaps substantially with al-Bukhari while making distinctive contributions.

The classical Sunni consensus has consistently ranked Sahih al-Bukhari slightly higher than Sahih Muslim in terms of overall authenticity, for the technical reasons we examined yesterday (al-Bukhari's tighter requirement on documentable transmission between consecutive narrators). But this ranking is marginal; both collections occupy the highest tier. Sahih Muslim is in some ways more accessible and more carefully arranged for the reader, with specific features that make it the preferred primary collection for some pedagogical purposes.

This day's reading examines what makes Muslim distinctive, where it complements al-Bukhari, and how to engage with it productively.

The Distinctive Methodology

While Muslim and Bukhari shared the foundational criteria for hadith authenticity (continuous chain, upright narrators, precision, absence of irregularity, absence of hidden defects), they differed in some specific applications.

The meeting requirement. Where al-Bukhari typically required documented evidence that consecutive narrators had actually met, Muslim required only that they were contemporaries who could plausibly have met. Muslim regarded the contemporaneity (with the possibility of meeting) as sufficient unless there was specific evidence that they had not met. This is a slightly more permissive standard, and it accounts for some hadiths being in Muslim that al-Bukhari did not include despite having access to them.

The classical scholars have held that Muslim's standard, while marginally more permissive than al-Bukhari's, is still extraordinarily rigorous by any reasonable measure. The hadiths that Muslim accepted are uniformly authentic; the difference between the two compilers is technical rather than substantive. A hadith that meets Muslim's criteria meets the criteria for full authenticity; the question is only whether al-Bukhari's specific additional precaution was applied or not.

The arrangement of variants. A specific feature of Muslim that distinguishes it from al-Bukhari is its more systematic arrangement of variant transmissions. Where al-Bukhari often scatters different versions of the same hadith across different chapters (to make different juristic points), Muslim typically gathers all the variant transmissions of a hadith together in one place. This makes it substantially easier for the reader to compare versions, see which variations exist in the text, and understand how the same hadith has been transmitted through different channels.

For students of hadith methodology, this is a major advantage. The variant analysis that students need to perform is more accessible in Muslim than in al-Bukhari. Imam al-Nawawi, in the introduction to his commentary on Muslim, specifically praises this feature.

*The introduction (Muqaddima). Muslim opens his collection with a substantial introduction that explicitly discusses his methodology — the criteria he applied, the categories of narrators he accepted and rejected, the ordering principles he followed. This is unusual; al-Bukhari did not include a comparable introduction. Muslim's introduction has been treated as a major source for understanding the science of hadith methodology in the third century AH. It is itself a foundational text of the usul al-hadith* literature.

For modern readers, the introduction is highly recommended as a starting point. It explains, in Muslim's own words, what he was attempting and how he proceeded. Reading the introduction first illuminates the rest of the collection.

The Structural Differences

Sahih Muslim is organised differently from Sahih al-Bukhari. Where al-Bukhari's chapters often function as juristic arguments (with chapter titles that contain his positions), Muslim's chapters are typically more straightforwardly thematic — gathering hadiths on a topic without embedding extensive juristic argumentation in the chapter titles.

The collection contains approximately 54 books (kutub), organised by topic. The major sections include:

- Kitab al-Iman — The Book of Faith - Kitab al-Taharah — The Book of Purification - Kitab al-Hayd — The Book of Menstruation - Kitab al-Salah — The Book of Prayer - Kitab al-Masajid — The Book of Mosques - Kitab Salat al-Musafirin — The Book of the Traveller's Prayer - Kitab al-Jum'ah — The Book of Friday - Kitab al-'Idayn — The Book of the Two Eids - Kitab al-Istisqa — The Book of Seeking Rain - Kitab al-Kusuf — The Book of Eclipse [Prayer] - Kitab al-Jana'iz — The Book of Funerals - Kitab al-Zakat — The Book of Zakat - Kitab al-Siyam — The Book of Fasting

And so on through the standard fiqh topics, with additional sections on zuhd (asceticism and detachment), fada'il (virtues — of the Prophet ﷺ, the companions, places, days, etc.), and qiyamah (the Day of Judgement and what precedes it).

The total number of hadiths in Muslim is approximately 7,500 (similar to al-Bukhari), though Muslim has fewer repetitions, so the unique hadith count is closer to 4,000 (against approximately 2,602 in al-Bukhari). This means Muslim contains a larger absolute number of unique hadiths than al-Bukhari, even though the percentage of repetitions is lower.

Modern readers often find Sahih Muslim somewhat easier to read straight through than al-Bukhari precisely because of these structural differences — fewer repetitions, more systematic gathering of variants, less embedded juristic argumentation in chapter titles. For first-time engagement with the canonical hadith collections, some scholars have actually recommended Muslim as the starting point for this reason.

The Major Commentaries

Sahih Muslim has its own substantial commentary tradition, though it is somewhat less voluminous than that of al-Bukhari.

Al-Minhaj fi Sharh Sahih Muslim ibn al-Hajjaj by Imam al-Nawawi (631–676 AH) is the standard commentary. Universally called simply Sharh al-Nawawi ala Muslim, this commentary runs to approximately eighteen volumes in modern editions. It is shorter than Ibn Hajar's Fath al-Bari on al-Bukhari but is comparably influential. Al-Nawawi's commentary is distinguished by its clarity, its systematic presentation, and its accessibility for non-specialist readers. It has been the standard commentary for over seven centuries.

For modern Muslim readers approaching Sahih Muslim, al-Nawawi's commentary is highly recommended. It is more accessible than Fath al-Bari (Ibn Hajar's commentary on al-Bukhari) for several reasons — al-Nawawi writes more concisely, focuses more on the meaning and application of the hadiths than on technical chain analysis, and is more accessible to non-specialist readers. Selected English translations of portions of al-Nawawi's commentary are available, making the work accessible to non-Arabic readers.

Ikmal al-Mu'lim by Qadi 'Iyad al-Yahsubi (476–544 AH) is an earlier major commentary, predating al-Nawawi by over a century. Qadi 'Iyad was a major Maliki scholar, and his commentary brings a Maliki perspective. Al-Nawawi himself drew on Qadi 'Iyad extensively, while sometimes correcting his positions.

Al-Mu'lim by al-Mazari (453–536 AH) is an even earlier commentary that Qadi 'Iyad expanded upon (hence Qadi 'Iyad's title Ikmal — "the completion of" al-Mazari's work). Al-Mazari and Qadi 'Iyad together represent the earlier Maghrebi tradition of commentary on Muslim.

Sharh Muslim by al-Ubbi (d. 827 AH) is a later Maliki commentary that synthesises and extends the earlier tradition.

Reading Sahih Muslim with at least al-Nawawi's commentary on the sections one is studying produces substantially deeper engagement than reading the bare text. The commentary provides the linguistic, juristic, theological, and practical dimensions that make the hadiths fully intelligible.

Specific Material That Muslim Preserves

Several important hadiths are preserved in Muslim (sometimes with notable variants) that are foundational to Sunni religious life.

The Hadith of Jibril. The famous hadith we have referenced throughout this curriculum — the angel Jibril asking the Prophet ﷺ about Islam, iman, and ihsan — is preserved in Muslim in its most extensive form. The hadith establishes the three-dimensional structure of the religion that we examined in our discussion of ihsan.

The Hadith of the Prayer Times. Muslim preserves the detailed hadith from Jibril teaching the Prophet ﷺ the times of the five prayers — leading him in prayer at the beginning of each window on one day and at the end of each window on the following day, with the explanation: "The prayer is between these two times." This hadith is foundational for the fiqh of prayer times.

The Hadith of Tawbah. The hadith qudsi we examined on Day 74 — about the servant who repeatedly sins and repeatedly repents, with Allah ultimately saying "Do as you wish, for I have forgiven you" — is preserved in Muslim with rich detail. This is one of the foundational texts on the doctrine of repentance.

The Hadith of the Garden Beneath Mothers' Feet. The Prophet ﷺ said: "Paradise is beneath the feet of mothers." In Muslim's version, the hadith is given in the context of a man asking the Prophet ﷺ whom he should treat best. The Prophet ﷺ said: "Your mother." The man asked: "Then who?" The Prophet ﷺ said: "Your mother." The man asked again. The Prophet ﷺ again said: "Your mother." Then on the fourth asking he said: "Your father." The triple emphasis on the mother establishes the specific elevation of maternal rights in Islamic ethics.

The Hadith of the Forty Days. The detailed hadith on embryonic development — "The creation of one of you is brought together in his mother's womb for forty days as a nutfah, then he is a clinging clot for the same period, then he is a piece of flesh for the same period..." — is preserved in Muslim. The hadith has implications for the theology of qadar (with the angel writing the four matters: provision, lifespan, deeds, and felicitous-or-wretched status), for the fiqh of abortion (with the periods establishing developmental stages), and for the broader Islamic theology of human development.

The Hadith of the Forty Years and Forty Days. A specific eschatological hadith preserved in Muslim describes the conditions before the Day of Judgement, including the descent of Isa (peace be upon him), the appearance of the Mahdi, and various other signs. The eschatological material in Muslim is extensive and has shaped Sunni discussions of end-times across the centuries.

These few examples illustrate the kind of material Muslim preserves. The collection's nearly four thousand unique hadiths cover an enormous range; even partial engagement opens substantial reservoirs of prophetic teaching.

How the Two Collections Complement Each Other

The complementarity of al-Bukhari and Muslim is part of why the Sunni tradition has treated them as paired.

Different organisational strengths. Al-Bukhari is stronger for studying juristic argumentation through hadith arrangement; Muslim is stronger for studying variant transmissions of single hadiths. The student who uses both gets both strengths.

Different selections. Although the two collections overlap substantially, each contains hadiths the other does not. The classical hadith hierarchy ranks muttafaqun alayh (in both collections) as the highest tier, then Bukhari alone, then Muslim alone, then hadiths in other collections. The believer who has read both is reaching across these tiers.

Different commentary traditions. Reading al-Bukhari with Fath al-Bari and Muslim with Sharh al-Nawawi gives the reader exposure to two of the major commentary streams in classical Sunni scholarship. The styles differ; the foci differ; the synthesis enriches the reader's understanding of how the classical tradition engaged with prophetic transmission.

Different periods of compilation. Although the two compilers were near-contemporaries, Muslim was completed slightly later than al-Bukhari and reflects some refinements in methodology. Reading both gives the reader exposure to the late-third-century state of the science of hadith authentication at its peak.

For modern Muslim readers, the practical implication is that engagement with both collections is part of comprehensive engagement with the foundational hadith tradition. The believer who has read substantial portions of one without the other has only partial engagement; reading both — even if selectively — produces fuller engagement.

Reading Paths for Sahih Muslim

Several practical reading paths exist for engagement with Sahih Muslim:

The introduction-first path. Begin with Muslim's Muqaddima (introduction) — even in translation — to understand his methodology in his own words. This opens the rest of the collection.

The thematic deep-dive path. Choose specific kutub (books) that align with current learning needs. The Kitab al-Iman is foundational. The Kitab al-Salah is essential. The Kitab al-Birr wa al-Sila (Book of Righteousness and Maintaining Ties) is rich on character. The Kitab al-Zuhd (Book of Asceticism) is rich on detachment from the world.

The hadith-of-the-day path. As with al-Bukhari, reading one or two hadiths per day from Muslim, with attention to context and meaning, produces gradual accumulation. Combining this with similar engagement with al-Bukhari produces consistent exposure to the canonical hadith tradition.

The Nawawi-paired path. For each section of Muslim studied, read the corresponding section of al-Nawawi's commentary. This produces deeper engagement than reading the bare text.

The comparison path. For specific hadiths, read both al-Bukhari's version and Muslim's version, noting the variations. This is the path of more advanced students but produces substantial benefit for those equipped to undertake it.

What This Teaches

Several lessons emerge.

The Sunnah Is Multiply Attested

The fact that we have two highly rigorous compilations of authenticated hadiths, produced by independent scholars with overlapping but distinct methodologies, is itself significant. The sunnah is multiply attested through multiple authentication frameworks. This is unusual among religious traditions; few have this kind of formal methodology applied multiply to their foundational texts.

For modern Muslims responding to scepticism about hadith authenticity, the multiple-attestation dimension is part of the response. Whatever criticisms might be levelled at any single compiler can be tested against the other compiler. The hadiths that survive both methodologies have an additional layer of authentication.

Methodology Matters

The differences between al-Bukhari and Muslim — small as they are by absolute measure — illustrate that methodology matters. Different scholarly choices, even by very rigorous scholars, produce different results. The believer who understands the methodologies engaged is better positioned to engage with the material than the believer who treats hadith collections as undifferentiated authority.

Complementary Scholarship Enriches

The classical pattern of paired major works — al-Bukhari and Muslim among the hadith collections, the four schools of fiqh providing different juristic methodologies, the diverse theological schools providing different theological articulations — illustrates that the tradition has flourished through complementary scholarship rather than through monolithic uniformity. Rich engagement with multiple authoritative perspectives produces understanding that engagement with any single perspective alone could not.

Accessibility Matters

The relatively greater accessibility of Sahih Muslim (compared to al-Bukhari) for first-time readers illustrates that pedagogy matters. Different texts serve different purposes at different stages of learning. The classical scholars often recommended specific orderings of texts for students, and the orderings reflected pedagogical wisdom. Modern Muslim education benefits from similar attention to pedagogy.

The Biography of Imam Muslim

Imam Muslim ibn al-Hajjaj al-Naysaburi was born in Nishapur (in present-day Iran) in 206 AH. Nishapur was, at the time, one of the great centres of Islamic scholarship. The city had a long tradition of hadith study and produced many of the major scholars of the early Islamic centuries.

Muslim travelled extensively for hadith study. He visited Iraq (where he studied with al-Bukhari and other masters), Hijaz, Egypt, and Syria. The classical biographers report that he heard hadiths from approximately 200 teachers across these regions. His personal collection of hadiths in his various works was substantial; the Sahih was the carefully curated subset of what he considered most rigorously authenticated.

Several stories preserved in the classical biographies illustrate his character. He was reported to be exceptionally generous; he supported many students and visitors from his own resources despite not having particular wealth. He was reported to be patient even under provocation; classical biographies record that he would not respond to verbal attacks on him. He was reported to be deeply attached to al-Bukhari, even though his own Sahih would eventually be paired with al-Bukhari's as canonical literature. When al-Bukhari was driven from Nishapur in the controversy we mentioned yesterday, Muslim maintained his loyalty to his teacher despite the social cost.

His death is described in the classical biographies as occurring in 261 AH (only five years after al-Bukhari's). The cause given is unusual: he had asked his students about a specific hadith he wanted to verify, and they brought him a basket of dates that they thought he might want for sustenance during a long study session. He became absorbed in his work and ate the dates one after another without paying attention. By the time he had finished verifying the hadith, he had eaten the entire basket. The illness that this caused was reported as leading to his death. Whether the story is fully accurate or has been embellished by later biographers, it captures something of his absorption in scholarly work — the focus on the hadith was so complete that ordinary attention to physical needs was suspended.

He left behind, in addition to Sahih, a number of other works. Al-Tamyiz is a treatise on hadith methodology that has survived. Kitab al-Tabaqat is a work on the ranks of hadith narrators. Al-Munfaridat wa al-Wuhdan deals with hadiths transmitted by single narrators. The breadth of his contribution to the science of hadith methodology is substantial; the Sahih is his most famous work but not his only major contribution.

The Broader Canon: The Six Books

Sahih al-Bukhari and Sahih Muslim are the first two of what classical Sunni scholarship calls al-Kutub al-Sittah (the Six Books) — the canonical hadith collections. The other four are:

Sunan Abi Dawud by Abu Dawud al-Sijistani (202–275 AH). Abu Dawud focused his collection specifically on hadiths bearing on legal questions — the term sunan refers specifically to hadiths used to derive law. His collection contains approximately 5,200 hadiths organised according to fiqh topics. Abu Dawud was less stringent than al-Bukhari and Muslim in his criteria — his collection contains some hadiths that are hasan (good) rather than sahih (authentic), and a few that are weak. He was explicit about this; he believed that having access to weaker hadiths on legal questions was useful for jurists who would need to evaluate them.

Jami al-Tirmidhi by Imam al-Tirmidhi (209–279 AH). Al-Tirmidhi was a student of al-Bukhari and continued his methodology in his own way. His collection — approximately 3,956 hadiths — is distinguished by his explicit grading of hadiths after each one (sahih, hasan, gharib, etc.) and his often-extensive discussion of how each hadith relates to juristic positions of various scholars. This makes his collection particularly useful pedagogically; the reader sees not just the hadith but al-Tirmidhi's evaluation and his account of how the hadith has been used in legal reasoning.

Sunan al-Nasa'i by Imam al-Nasa'i (215–303 AH). Al-Nasa'i actually produced two collections: a larger al-Sunan al-Kubra and a smaller al-Sunan al-Sughra (also called al-Mujtaba). The smaller one is what is included in the Six Books. Al-Nasa'i's standards were relatively strict; some classical scholars have ranked his collection just below al-Bukhari and Muslim in average authenticity. His collection contains approximately 5,761 hadiths, with notable focus on details of ritual practice.

Sunan Ibn Majah by Ibn Majah al-Qazwini (209–273 AH). Ibn Majah's collection contains approximately 4,341 hadiths, organised by fiqh topics. His standards were less strict than the previous compilers; his collection contains a higher proportion of weak hadiths than the others. The classical scholars debated whether to include Ibn Majah in the canonical six or to use al-Muwatta of Imam Malik instead; the consensus that emerged is that the Six Books include Ibn Majah, with the recognition that his collection requires more careful evaluation than the others.

These six collections together form the core canonical hadith literature. The believer who has engaged substantially with even portions of all six has comprehensive exposure to the prophetic sunnah as preserved in classical scholarship. Al-Muwatta of Imam Malik (which is technically older than the Six Books) is sometimes added to make a Seven Books canon; we will examine al-Muwatta later this week.

A Closing Reflection

Sahih Muslim, paired with Sahih al-Bukhari, forms the core of the Sunni hadith canon. The two collections together preserve thousands of authenticated prophetic teachings across the full range of religious life. Engagement with them is part of engagement with the foundational sources of the religion.

For modern Muslims, the practical task is the work of years. Even partial engagement, sustained over time, produces substantial benefit. The full engagement that the classical scholars achieved is not realistic for most modern Muslims, but the trajectory toward deeper engagement is available. The reader who begins now and sustains the work across decades will, by the end, have engaged with the canonical tradition in a way that anchors their religious life in the foundational sources rather than in derivative literature.

May Allah grant us appreciation for the scholars who preserved the sunnah with rigour. May He grant us engagement with the canonical collections that shapes our practice. May He grant us the patience to sustain the work across years, and the depth that comes from sustained return. Amin.