Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Yūsuf al-Khūrī `or` al-Qass, Abū Yaʿqūb ibn Yūsuf ibn ʿĪsā — يوسف الناقل " 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/2343
   
      
         
            
               Yūsuf al-Khūrī `or` al-Qass, Abū Yaʿqūb ibn Yūsuf ibn ʿĪsā
               Yūsuf the Translator
               يوسف الناقل
               يوسف الخوري / القس، أبو يعقوب بن يوسف بن عيسى
               Yūsuf al-Khūrī `or` al-Qass (the priest), Abū Yaʿqūb ibn Yūsuf ibn ʿĪsā known as Yūsuf the Translator, the Physician, and the Sleepless, physician under al-Muktafī
               https://usaybia.net/person/2343
               https://onomasticon.irht.cnrs.fr/en/entry/id/4161
               
                  physician
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  9.26