Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "ʿUmar ibn Ḥamzah — عمر بن حمزة " in Communities of Knowledge: Interreligious Networks of Scholars in Ibn Abi Usaybiʿa’s History of the Physicians last modified June 23, 2021, https://usaybia.net/person/2260 ʿUmar ibn Ḥamzah عمر بن حمزة ʿUmar ibn Ḥamzah, al-Sharīf, grammarian https://usaybia.net/person/2260 grammarian A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah 15.40.2