Surah An-Noor Verse 27 - English Translation by A. J. Arberry
Surah An-Noorيَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تَدۡخُلُواْ بُيُوتًا غَيۡرَ بُيُوتِكُمۡ حَتَّىٰ تَسۡتَأۡنِسُواْ وَتُسَلِّمُواْ عَلَىٰٓ أَهۡلِهَاۚ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ لَعَلَّكُمۡ تَذَكَّرُونَ
O believers, do not enter houses other than your houses until you first ask leave and, salute the people thereof; that is better for you; haply you will remember