Tobias Scheunchen (eds.), "Zubāla - زبالة " in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/5535
  
    
      
        
          Zubāla
          زبالة
          
          A town in the north of the Arabian Peninsula north of al-Shuqūq. The town is part of the Darb Zubayda, the famous pilgrim highway from al-ʿIrāq to Ḥijāz.
          https://bqgazetteer.bethmardutho.org/place/5535
          http://syriaca.org/place/5535
          
            Riḥlat Ibn JubayrIbn JubayrM.J. de Goeje 
            207, 208