وَإِذْ تَأَذَّنَ رَبُّكُمْ لَئِن شَكَرْتُمْ لَأَزِيدَنَّكُمْ وَلَئِن كَفَرْتُمْ إِنَّ عَذَابِى لَشَدِيدٌ
Saheeh International(7) 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.'"
English Translation - Rowwad Translation CenterAnd [remember] when your Lord declared, ‘If you are grateful, I will surely give you more; but if you are ungrateful, My punishment is severe indeed.’”
English Translation - Hilali and Khan7. And (remember) when your Lord proclaimed: "If you give thanks (by accepting Faith and worshipping none but Allâh), I will give you more (of My Blessings); but if you are thankless (i.e. disbelievers), verily My punishment is indeed severe."