Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Abū Jaʿfar ibn al-Qāsim ibn ʿUbayd Allāh — أبو جعفر بن القاسم بن عبيد 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/244
   
      
         
            
               Abū Jaʿfar ibn al-Qāsim ibn ʿUbayd Allāh
               أبو جعفر بن القاسم بن عبيد الله
               Abū Jaʿfar ibn al-Qāsim ibn ʿUbayd Allāh, member of the Banū Wahb, vizier to al-Qāhir bi-Allāh (d. 321/933)
               https://usaybia.net/person/244
               
                  vizier
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  10.8.8