Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Qutham ibn ʿAbbās ibn ʿAbd al-Muṭṭalib al-Hāshimī — بن عباس بن عبد المطلب الهاشمي " 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/1888
   
      
         
            
               Qutham ibn ʿAbbās ibn ʿAbd al-Muṭṭalib al-Hāshimī
               بن عباس بن عبد المطلب الهاشمي
               Qutham ibn ʿAbbās ibn ʿAbd al-Muṭṭalib al-Hāshimī, cousin and Companion of Muḥammad
               https://usaybia.net/person/1888
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  7.5.6