7وَإِذ تَأَذَّنَ رَبُّكُم لَئِن شَكَرتُم لَأَزيدَنَّكُم ۖ وَلَئِن كَفَرتُم إِنَّ عَذابي لَشَديدٌZafar AnsariAlso call to mind when your Lord proclaimed: "If you give thanks, I will certainly grant you more; but if you are ungrateful for My favours, My chastisement is terrible.