Ibrahim 14:7

Wa-ith taaththana rabbukumla-in shakartum laazeedannakum wala-in kafartum inna AAathabeelashadeed

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.'"

(Recall the time) when your Lord declared, “If you express gratitude, I shall certainly give you more, and if you are ungrateful, then My punishment is severe.”