Tobias Scheunchen (eds.), "al-Ṣafā - الصَّفَا " in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/5111
  
    
      
        
          al-Ṣafā
          الصَّفَا
          الصفا
          ِܱA fortification in al-Baḥrayn and Hagar.
          
            والصفا : حصن بالبحرين وهجر
          Beth Qaṭraye
          https://bqgazetteer.bethmardutho.org/place/5111
          http://syriaca.org/place/5111
          
            Muʿjam al-buldānShihāb al-Dīn Abū ʿAbdallāh al-Rūmī Yāqūt al-Ḥamawī
            3411