Surah Al-Kahf, ayah 87

قَالَ أَمَّا مَن ظَلَمَ فَسَوۡفَ نُعَذِّبُهُۥ ثُمَّ يُرَدُّ إِلَىٰ رَبِّهِۦ فَيُعَذِّبُهُۥ عَذَابٗا نُّكۡرٗا ٨٧

Qāla ammā man zalama fasawfa nu'addhibuhū thumma yuraddu ilā rabbihī fayu'addhibuhū 'adhāban nukrā

He said, "As for one who wrongs,⁷⁹⁶ we will punish him. Then he will be returned to his Lord, and He will punish him with a terrible punishment [i.e., Hellfire].