Thomas A. Carlson (ed.), "Hagar" in last modified August 9, 2017, http://syriaca.org/place/2903
   
      
         
            
               Hagar
               هجر
               A town in northeastern Arabia
               
               
                  26.877823 48.726603
               
               
                  Attestation of name هجر in the 
                        Kitāb al-masālik wa-l-mamālik of Abuʾl-Qāsim Ibn Khurradādhbih.
                  
               
               
                  Attestation of name هجر in the 
                        Kitāb al-buldān of Aḥmad b. Muḥammad al-Hamadhānī Ibn al-Faqīh.
                  
               
          
                  
                  
               
               http://syriaca.org/place/2903
               http://pleiades.stoa.org/places/932483
               
                  Kitāb al-masālik wa-l-mamālik
                  Abuʾl-Qāsim Ibn Khurradādhbih
                  
                  152
               
               
                  Kitāb al-buldān
                  Aḥmad b. Muḥammad al-Hamadhānī Ibn al-Faqīh
                  
                  30