al-Tarif bil-Ansab wal-Tanwih bi-Dhawi al-Ahsab

al-Taʿrīf bi-l-Ansāb wa-l-Tanwīh bi-Dhawī al-Aḥsāb (The Exposition of Lineages and Commendation of the Nobly Descended) is a treatise on Arabic genealogy by the genealogist Abū al-Ḥajjāj Aḥmad ibn Muḥammad al-Ashʿarī (also known as Abū al-Ḥasan; d. c. 550 AH / 1155 CE, with other accounts placing his death around 600 AH / 1203 CE) Tabaqat al-Nassabin+1. The work provides a concise survey of the core tribal lines of the Arabs, focusing on notable historical figures and major ancestral branches Tabaqat al-Nassabin+1.

Purpose and Scope

The author compiled the work to extract the essence of earlier genealogical writings, adopting a middle course between excessive length and undue brevity Tabaqat al-Nassabin+1. In the introduction, he emphasizes the importance of genealogical knowledge for upholding ties of kinship and understanding relevant legal rulings, citing Quranic verses and prophetic traditions such as: تعلّموا من أنسابكم ما تصلون به أرحامكم ("Learn enough of your lineages to maintain your ties of kinship") al-Tarif bil-Ansab wal-Ta…. He also records statements attributed to ʿUmar ibn al-Khaṭṭāb urging people to preserve knowledge of their heritage al-Tarif bil-Ansab wal-Ta….

Structure and Content

The text opens with the lineage of the Prophet Muḥammad ﷺ, tracing his direct ancestry to ʿAdnān and continuing through earlier biblical and ancient ancestors back to Adam al-Tarif bil-Ansab wal-Ta…. The author notes that while the lineage up to ʿAdnān is agreed upon, scholars differ regarding names prior to ʿAdnān, referencing ʿĀʾishah's remark that lineages beyond ʿAdnān and Qaḥṭān cannot be known with certainty al-Tarif bil-Ansab wal-Ta….

Following the prophetic genealogy, the book addresses:

• The Prophet's immediate family and the Banū ʿAbd al-Muṭṭalib: His children and paternal uncles, including al-ʿAbbās ibn ʿAbd al-Muṭṭalib and Abū Ṭālib al-Tarif bil-Ansab wal-Ta…+1.
• The Abbasid line: The descendants of al-ʿAbbās, extending through successive Abbasid caliphs up to contemporaries of the author's era, including al-Mustarshid and al-Muqtafī al-Tarif bil-Ansab wal-Ta…+1.
• The Alid branches: The descendants of ʿAlī ibn Abī Ṭālib through al-Ḥasan ibn ʿAlī and al-Ḥusayn ibn ʿAlī, recording notable sub-lineages such as the Rassids, the descendants of Sulaymān, and the Fatimid line al-Tarif bil-Ansab wal-Ta…+1.
• Arab tribes and notable figures: Subsequent sections survey various Northern and Southern Arab tribal confederations—such as Asad, Rabīʿa, ʿAnazah, and Khawlān—highlighting prominent individuals, poets, and scholars associated with them Mawsuat al-Qabail al-Arab…+1. In compiling regional and tribal details, al-Ashʿarī draws upon earlier authorities, including the genealogist Muḥammad ibn al-Ḥasan al-Kalāʿī Mawsuat al-Qabail al-Arab….

Abridgment and Editions

The author later prepared an abridged version of the book entitled al-Lubāb (also known as al-Lubāb ilā maʿrifat al-ansāb), focusing strictly on the primary tribal trunks and branches as an introductory guide to genealogy Tabaqat al-Nassabin+1.

In print, al-Taʿrīf bi-l-Ansāb has been edited by Saʿd ʿAbd al-Maqṣūd Ẓallām and published by Dār al-Manār Akhbar Qabail al-Khazraj+1.