al-Ghassānī also related to us; Ibrāhīm ibn Isḥāq al-Sarafandī said:

Jaʿfar ibn ʿAbd al-Wāḥid wrote to me, stating that Saʿīd ibn Salām told us, ‘al-Musayyab Abū Zuhayr narrated to us: I heard Abū Jaʿfar al-Manṣūr recount from his father, from his grandfather, from Ibn ʿAbbās that the Messenger of Allah ﷺ said, “al-ʿAbbās is my uncle, my executor, and my inheritor.”’

This report is rejected, and Jaʿfar is not reliable. (1)

335 – Ibn al-Jazzār, Aḥmad ibn Ibrāhīm al-Qayrawānī *

The brilliant philosopher and master physician, Abū Jaʿfar Aḥmad ibn Ibrāhīm ibn Abī Khālid al-Qayrawānī, was a student of Isḥāq ibn Sulaymān al-Isrāʾīlī. He became attached to the ʿUbaydid regime, and his wealth and retinue grew considerably.

He wrote many works, among them: The Traveler’s Provisions in Medicine; Simple Remedies (2); a lengthy Epistle on the Soul; The Censure of Blood-letting (3); The Causes of Egypt’s Plague and the Stratagem for Repelling It; and The Mahdī’s State and His Appearance in the West.

He was still alive during the reign of al-Muʿizz li-Dīn Allāh. (4)