28فَإِن لَم تَجِدوا فيها أَحَدًا فَلا تَدخُلوها حَتّىٰ يُؤذَنَ لَكُم ۖ وَإِن قيلَ لَكُمُ ارجِعوا فَارجِعوا ۖ هُوَ أَزكىٰ لَكُم ۚ وَاللَّهُ بِما تَعمَلونَ عَليمٌBijan MoeinianIf you knock at the door and nobody answers, do not enter. If your request for the entrance is refused, leave the premises; this is a good behavior. Do not forget that God sees what you are doing.