Surah An-Nur, Verse 27

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تَدۡخُلُواْ بُيُوتًا غَيۡرَ بُيُوتِكُمۡ حَتَّىٰ تَسۡتَأۡنِسُواْ وَتُسَلِّمُواْ عَلَىٰٓ أَهۡلِهَاۚ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ لَعَلَّكُمۡ تَذَكَّرُونَ٢٧

yāayyuhā alladhīna āmanū lā tadkhulū buyūtan ghayra buyūtikum ḥattā tastanisū watusallimū ʿalā ahlihā dhālikum khayrun lakum laʿallakum tadhakkarūna

O you who have believed, do not enter houses other than your own houses until you ascertain welcome and greet their inhabitants. That is best for you; perhaps you will be reminded [i.e., advised].