Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Abū ʿĪsā Aḥmad ibn Hārūn — أبو عيسى أحمد بن هارون " 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/229
   
      
         
            
               Abū ʿĪsā Aḥmad ibn Hārūn
               أبو عيسى أحمد بن هارون
               Abū ʿĪsā Aḥmad ibn Hārūn, brother of al-Maʾmūn
               https://usaybia.net/person/229
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  8.3.5