4:86 wa idhaa Huy-yiytum bi taHiy-yatin fa Hay-yuu bi aHsana minhaa aw rud-duuhaa* in-nal-laaha kaana 'Alaa kul-li shay'in Hasiybaa

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And when you are greeted with some words, greet back with words better than it or with the same; indeed Allah will take account of everything.

Yusuf Ali:
When a (courteous) greeting is offered you, meet it with a greeting still more courteous, or (at least) of equal courtesy. Allah takes careful account of all things.

Pickthal:
When ye are greeted with a greeting, greet ye with a better than it or return it. Lo! Allah taketh count of all things.