Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Abū l-Ḥajjāj Yūsuf — أبو الحجاج يوسف " 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/182
   
      
         
            
               Abū l-Ḥajjāj Yūsuf
               أبو الحجاج يوسف
               Abū l-Ḥajjāj Yūsuf, Shihāb al-Dīn, oculist in Egypt, teacher of ⅠＡＵ’s father ca. 1200
               https://usaybia.net/person/182
               
                  oculist
               
               
                  teacher
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  15.51.1