Surah An-Nisa Verse 86 - English Translation by Almuntakhab Fi Tafsir Alquran Alkarim
Surah An-Nisaوَإِذَا حُيِّيتُم بِتَحِيَّةٖ فَحَيُّواْ بِأَحۡسَنَ مِنۡهَآ أَوۡ رُدُّوهَآۗ إِنَّ ٱللَّهَ كَانَ عَلَىٰ كُلِّ شَيۡءٍ حَسِيبًا
When you are greeted with words or gestures, acknowledge the greeting with a more courteous recognition or at least return the same formula; it is an obligation. Allah has always taken account of all things and all actions