وَاِذۡ تَاَذَّنَ رَبُّكَ لَيَبۡعَثَنَّ عَلَيۡهِمۡ اِلٰي يَوۡمِ الۡقِيٰمَةِ مَنۡ يَّسُوۡمُهُمۡ سُوۡٓءَ الۡعَذَابِؕ اِنَّ رَبَّكَ لَسَرِيۡعُ الۡعِقَابِۚۖ وَاِنَّهٗ لَغَفُوۡرٌ رَّحِيۡمٌ

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