سورة النور

يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَدْخُلُوا بُيُوتًا غَيْرَ بُيُوتِكُمْ حَتَّىٰ تَسْتَأْنِسُوا وَتُسَلِّمُوا عَلَىٰ أَهْلِهَا ۚ ذَٰلِكُمْ خَيْرٌ لَكُمْ لَعَلَّكُمْ تَذَكَّرُونَ ﴿٢٧

Surah an-Nur

27. O you who believe! Do not enter houses other than your own, until you have asked for permission, and greeted their occupants. That is better for you; so that you may remember.