86وَإِذا حُيّيتُم بِتَحِيَّةٍ فَحَيّوا بِأَحسَنَ مِنها أَو رُدّوها ۗ إِنَّ اللَّهَ كانَ عَلىٰ كُلِّ شَيءٍ حَسيبًاAhmed & SamiraAnd if you were greeted with a greeting, so greet with better from (than) it, or return it, that God was/is on every thing counting/calculating.