Tobias Scheunchen (eds.), "Bāb al-Sulṭān - باب السلطان " in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/5205
  
    
      
        
          Bāb al-Sulṭān
          باب السلطان
          
          One of the gates of Baghdād.
          https://bqgazetteer.bethmardutho.org/place/5205
          http://syriaca.org/place/5205
          
            Riḥlat Ibn JubayrIbn JubayrM.J. de Goeje 
            229