28فَإِن لَم تَجِدوا فيها أَحَدًا فَلا تَدخُلوها حَتّىٰ يُؤذَنَ لَكُم ۖ وَإِن قيلَ لَكُمُ ارجِعوا فَارجِعوا ۖ هُوَ أَزكىٰ لَكُم ۚ وَاللَّهُ بِما تَعمَلونَ عَليمٌ(Saheeh International)And if you do not find anyone therein, do not enter them until permission has been given you. And if it is said to you, "Go back,"1 then go back; it is purer for you. And Allāh is Knowing of what you do. Or a similar expression showing that the occupants are not prepared to receive visitors (which should be respected).