Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "al-Ḥarrānī, ʿUmar ibn Yūnus ibn Aḥmad — أحمد وعمر ابنا يونس بن أحمد الحراني " 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/832
   
      
         
            
               al-Ḥarrānī, ʿUmar ibn Yūnus ibn Aḥmad
               Aḥmad and ʿUmar, the Sons of Yūnus ibn Aḥmad al-Ḥarrānī
               أحمد وعمر ابنا يونس بن أحمد الحراني
               الحرّاني عمر بن يونس بن أحمد
               al-Ḥarrānī, ʿUmar ibn Yūnus ibn Aḥmad
               https://usaybia.net/person/832
               
                  Muslim
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  13.19
                  13.29.2