Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Abū ʿAbd Allāh al-Ḥusayn ibn Aḥmad ibn Zakariyyā al-Dāʿī — أبو عبد الله الحسين بن أحمد بن زكريا الداعي " 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/68
   
      
         
            
               Abū ʿAbd Allāh al-Ḥusayn ibn Aḥmad ibn Zakariyyā al-Dāʿī
               أبو عبد الله الحسين بن أحمد بن زكريا الداعي
               Abū ʿAbd Allāh al-Ḥusayn ibn Aḥmad ibn Zakariyyā al-Dāʿī, missionary for the Fatimid Mahdī
               https://usaybia.net/person/68
               
                  missionary
               
               
                  Muslim
               
               
                  Muslim
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  13.2.2.2