وَإِذْ تَأَذَّنَ رَبُّكُمْ لَئِن شَكَرْتُمْ لَأَزِيدَنَّكُمْ وَلَئِن كَفَرْتُمْ إِنَّ عَذَابِي لَشَدِيدٌ
Wa-ith taaththana rabbukum la-in shakartum laazeedannakum wala-in kafartum inna AAathabee lashadeedun
And when proclaimed your Lord, "If you are thankful, surely I will increase you; but if you are ungrateful indeed, My punishment (is) surely severe."
And [remember the time] when your Sustainer made [this promise] known: 'If you are grateful [to Me], I shall most certainly give you more and more; but if you are ungrateful, verily, My chastisement will be severe indeed!"'
And remember! your Lord caused to be declared (publicly): "If ye are grateful, I will add more (favours) unto you; But if ye show ingratitude, truly My punishment is terrible indeed."
And when your Lord proclaimed: If ye give thanks, I will give you more; but if ye are thankless, lo! My punishment is dire.
And when your Lord made it known: If you are grateful, I will give you more, and if you are ungrateful, My chastisement is truly severe.
And [remember] when your Lord proclaimed, 'If you are grateful, I will surely increase you [in favor]; but if you deny, indeed, My punishment is severe.' "