al-Tamyiz li Muslim

Al-Tamyiz (Kitab al-Tamyiz, "The Distinction") is a foundational treatise on hadith criticism and hidden defects ('ilal) by Muslim ibn al-Hajjaj (d. 261 AH / 875 CE) al-Jami fi al-Ilal wa al-…+1.

Subject and Scope

The book is devoted to the methodology of identifying hidden defects ('ilal al-hadith) and distinguishing sound narrations from flawed, erroneous, or misattributed transmissions al-Jami fi al-Ilal wa al-…+1. It illustrates the critical procedures employed by early hadith scholars to cross-examine chains of transmission (isnad) and texts (matn), demonstrating how discrepancies and transmitter errors are uncovered Tahrir Ulum al-Hadith+1. Bibliographers such as al-Hakim al-Naysaburi and al-Sakhawi list al-Tamyiz as a distinct work separate from Muslim's other title, Kitab al-Ilal Sharh al-Ilmam bi-Ahadith…+1.

Extant Text and Transmission

The surviving text of al-Tamyiz is an incomplete abridgment or fragment rather than the complete original work al-Jami fi al-Ilal wa al-…+1. Evidence for this truncated state includes numerous classical quotations attributed to al-Tamyiz that are missing from the surviving copy, as well as explicit abridgment markers within the text, such as the phrase «فذكر الحديث» ("so he mentioned the hadith") al-Jami fi al-Ilal wa al-…. Although early sources report that Ibn Abd al-Barr produced an abridgment of the work, scholars consider the extant text unlikely to be his exact summary due to structural defects and poor handling in several places al-Jami fi al-Ilal wa al-…+1. The surviving text has been preserved in a manuscript written in Maghrebi script al-Jami fi al-Ilal wa al-….

Method and Reception

Al-Tamyiz is distinguished by its simplicity and clarity of exposition compared to other early works on hadith defects al-Jami fi al-Ilal wa al-…. It is considered one of the most effective texts for understanding the critical principles and practical methods of early hadith critics, showcasing the technical mastery that underpinned Muslim's composition of Sahih Muslim Liqaat Multaqa Ahl al-Had…+1.

Editions

The surviving text has been published in critical editions, including:

• An edition edited by Dr. Muhammad Mustafa al-A'zami (Riyadh: Sharikat al-Tiba'ah al-Arabiyyah al-Sa'udiyyah) Juhud al-Muhaddithin fi B…+1.
• An edition edited by Dr. Abd al-Qadir Mustafa al-Muhammadi (Riyadh: Dar Ibn al-Jawzi) al-Abab fi Dabt Ism al-Ki…+1.