Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "al-Saffāḥ — السفاح " 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/1950
   
      
         
            
               al-Saffāḥ
               السفاح
               al-Saffāḥ, first Abbasid caliph (`reg.` 132– 136/749–54)
               https://usaybia.net/person/1950
               
                  caliph
               
               
                  Muslim
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  8.7
                  8.18.1n