يا أَيُّهَا الَّذينَ آمَنوا لا تَدخُلوا بُيوتًا غَيرَ بُيوتِكُم حَتّىٰ تَستَأنِسوا وَتُسَلِّموا عَلىٰ أَهلِها ۚ ذٰلِكُم خَيرٌ لَكُم لَعَلَّكُم تَذَكَّرونَ

O you who believe, don’t enter homes other than your own until you have sought permission and greeted its inhabitants. This is better for you, that you may be mindful.