KALĀBĀDHĪ, AL- (d. AH 380/5, 990/5 CE), more fully Abū Bakr Muḥammad ibn Isḥāq ibn Ibrāhīm al-Kalābādhī; was the author of a famous treatise on early Sufism. As his name indicates, he was a native of the Kalābādh district of Bukhara. Details of his biography are lacking, but he is stated to have been a pupil of the Ṣūfī Abū al-Ḥusayn al-Fārisī and a Ḥanafī jurist with pro-Māturīdī views who studied jurisprudence (fiqh) under Muḥammad ibn Faḍl.

Of the works attributed to al-Kalābādhī, two are extant. The Maʿānī al-akhbār, also known as Baḥr al-fawāʾid and by other titles, was compiled in 985 and remains as yet unpublished. It consists of a brief ethical commentary, Ṣūf...