Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "ʿAbd Allāh — عبد الله " 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/10
   
      
         
            
               ʿAbd Allāh
               عبد الله
               ʿAbd Allāh (? = ʿUbayd Allāh ibn Yaḥyā ibn Khāqān), vizier of al-Mutawakkil
               https://usaybia.net/person/10
               
                  vizier
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  8.4.3n
                  8.12