Abū Manṣūr al-Iṣfahānī, Maʿmar b. Aḥmad b. Muḥammad b. Ziyād (d. Ramaḍān 418/October 1027) was a Ḥanbalī Sufi and traditionist of Iṣfahān. The appearance of his name in some works as ‘Abū Manṣūr b. Maʿmar’ and ‘Abū Maʿmar’ (al-Māfarrūkhī, 30; al-Hujwīrī, 62), is a scribal error and the result of carelessness by authors or copyists.

Very little is known about his life. Taking the information given in the sources and estimates of his age, as well as the dates given for the deaths of a number of …