14:7
وَ إِذْ تَأَذَّنَ رَبُّ كُمْ لَ ئِن شَكَرْ تُمْ لَ أَزِيدَ نَّ كُمْ وَ لَ ئِن كَفَرْ تُمْ إِنَّ عَذَابِ ى لَ شَدِيدٌ
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.' "
7:167
وَ إِذْ تَأَذَّنَ رَبُّ كَ لَ يَبْعَثَ نَّ عَلَيْ هِمْ إِلَىٰ يَوْمِ ٱلْ قِيَٰمَةِ مَن يَسُومُ هُمْ سُوٓءَ ٱلْ عَذَابِ إِنَّ رَبَّ كَ لَ سَرِيعُ ٱلْ عِقَابِ وَ إِنَّ هُۥ لَ غَفُورٌ رَّحِيمٌ
And [mention] when your Lord declared that He would surely [continue to] send upon them until the Day of Resurrection those who would afflict them with the worst torment. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.