Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "ʿUmar ibn Ṣakhr — عمر بن صخر " 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/2265
   
      
         
            
               ʿUmar ibn Ṣakhr
               عمر بن صخر
               ʿUmar ibn Ṣakhr, companion of Saʿīd ibn Tawfīl
               https://usaybia.net/person/2265
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  14.4.4