Abū al-Layth authored works in various fields, though many books have been attributed to him that he did not actually write—an issue that is also reflected in library catalogues. Some of his genuine works include: •
Tafsir al-Samarqandi – An early classical commentary on the
Quran. •
Ḫizānat al-Fiqh – One of the earliest Ḥanafī legal compendia, published by Ṣalāḥ al-Dīn al-Nāhī together with ʿUyūn al-Masāʾil (Baghdad, 1385–1387/1965–1967). •
ʿUyūn al-Masāʾil – A collection of legal opinions of
Abū Ḥanīfa and his disciples outside the ẓāhir al-riwāya corpus. It serves as an important early source for the development of Ḥanafī jurisprudence. Abu al-Layth occasionally inserted his own views at the end of the narrations (ed. ʿAbd al-Razzāq al-Qādirī, Hyderabad 1960; Ṣalāḥ al-Dīn al-Nāhī, Baghdad 1965–1967; Sayyid Muḥammad Muhannā, Beirut 1998). A commentary on the work was written by ʿAlāʾ al-Dīn al-Usmendī under the title
Sharḥ ʿUyūn al-Masāʾil wa-Ḥaṣr al-Masāʾil wa-Qaṣr al-Dalāʾil (MS: al-Maktabah al-Azhariyyah, al-Rāfiʿī, no. 26819; Rampur Raza Library, no. 2206). Confusion over this commentary and similar titles led to later misattributions. •
Al-Nawāzil (al-Fatāwā) – The titles al-Fatāwā, al-Nawāzil min al-Fatāwā, Fatāwā al-Nawāzil, and Mukhtārāt al-Nawāzil refer to the same work, though it has circulated under different names. The Fatāwā al-Nawāzil printed in Hyderabad (1936) and attributed to Abu al-Layth is not his authentic work. •
Muqaddima fī al-Ṣalāt – Also called Muqaddimat Abī al-Lays or al-Muqaddima fī al-Fiqh. It covers the rules of prayer and other related religious matters. It inspired several commentaries, including Ḥasan al-Ṭulūnī’s Sharḥ Muqaddimat Abī al-Lays fī al-Fiqh and Muṣliḥ al-Dīn b. Muṣṭafā b. Aydoghmush’s al-Tawḍīḥ ʿalā Muqaddimat al-Ṣalāt li-Abī al-Lays. Tāj al-Dīn b. ʿArabshāh versified the work. •
Kitāb al-Mukhtalaf fī al-Fiqh bayna Abī Ḥanīfa wa-Aṣḥābih – Also known as al-Mukhtalaf bayn al-Aṣḥāb or Mukhtalaf al-Aṣḥāb. This work discusses legal disagreements among early Ḥanafī jurists, occasionally comparing their opinions with those of
al-Shāfiʿī and others. Two manuscripts survive: Beyazıt State Library (no. 2167, dated 457 AH) and Topkapı Palace Museum, III Ahmad (no. 1197, dated 754 AH). A critical edition was published by Aḥmad Muḥammad Luṭfī Aḥmad as al-Mukhtalaf fī al-Fiqh bayna Abī Ḥanīfa wa-Aṣḥābih (Beirut 1444/2023). The Mukhtalaf al-Riwāya attributed to Abu al-Layth by Mubārak al-Faraj (Riyadh 1426/2005) actually belongs to al-Usmendī. •
Bayān ʿAqīdat al-Uṣūl – A concise creed outlining the tenets of
Ahl al-Sunnah in the form of the ʿamantu. It became popular in
Southeast Asia (Indonesia, Malaysia) and
South Africa, where it was translated into local languages. Due to its influence, it was edited and published by A. W. Juynboll (Leiden, 1881). •
Tanbīh al-Ghāfilīn (Tanbīh al-Ṣāfilīn) – A popular work of moral exhortation and devotional advice based on
Prophetic traditions and sayings of the early pious generation (
Salaf). It discusses creed, worship, ethics, virtues of the Qur'ān and Ramaḍān, and social duties. The text was widely circulated, translated into Aljamiado (the Romance dialect of Muslim Spain), and frequently reprinted (Cairo 1311; Calcutta 1869; Bombay 1304; Beirut 1403/1983). Bustān al-ʿĀrifīn – Another collection of sermons and ethical reflections in the same style as Tanbīh al-Ghāfilīn (Calcutta 1868; Istanbul 1286, 1289, 1296; Būlāq 1289; Damascus 1985). •
ʿUqūbat Ahl al-Kabāʾir – A treatise on the punishment of major sinners (ed. Muṣṭafā ʿAbd al-Qādir ʿAṭā, Beirut 1405/1983; Baghdad 1989). ==See also==