Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "al-Muqtafī li-amr Allāh (Abū ʿAbd Allāh Muḥammad ibn al-Mustaẓhir) — المقتفي لأمر الله أبو عبد الله محمد بن المستظهر " 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/1668 al-Muqtafī li-amr Allāh (Abū ʿAbd Allāh Muḥammad ibn al-Mustaẓhir) المقتفي لأمر الله أبو عبد الله محمد بن المستظهر al-Muqtafī li-amr Allāh (Abū ʿAbd Allāh Muḥammad ibn al-Mustaẓhir), Abbasid caliph (`reg.` 530–555/1136–1160) https://usaybia.net/person/1668 caliph Muslim Muslim A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah 10.68.1.4 10.72