Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Abū l-Ḥusayn Yūsuf — أبو الحسين 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/227
   
      
         
            
               Abū l-Ḥusayn Yūsuf
               أبو الحسين يوسف
               Abū l-Ḥusayn Yūsuf, probably written in error for Abū l-Ḥasan Yūsuf Abū l-ʿIbar, Abū l-ʿAbbās Muḥammad ibn Aḥmad ibn ʿAbd Allāh al-Hāshimī, known as Abū l-ʿIbar, burlesque poet (d. 252/866)
               https://usaybia.net/person/227
               
                  poet
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  8.26.5