Abū al-Ḥasan al-Ḥarrānī, Thābit b. Ibrāhīm b. Zahrūn al-Ḥarrānī the Sabian (b. Raqqa, Dhū al-Qaʿda 283/September 896; d. Baghdad, Shawwāl 369/February 980), was a physician and a translator who came from Ḥarrān, and the uncle of Abū Isḥāq Ibrāhīm b. Hilāl al-Ṣābī (for the date of his death, see Ibn Abī Uṣaybiʿa, 1/230). Not much is known about his life, his education, and his teachers, except that he was from a learned family and his father, Ibrāhīm (d. 309/921), wa…