Punishment

Allah punishes whom He wills

2:284Unto Allah (belongeth) whatsoever is in the heavens and whatsoever is in the earth; and whether ye make known what is in your minds or hide it, Allah will bring you to account for it. He will forgive whom He will and He will punish whom He will. Allah is Able to do all things.

5:40Knowest thou not that unto Allah belongeth the Sovereignty of the heavens and the earth? He punisheth whom He will, and forgiveth whom He will. Allah is Able to do all things.

9:15And He will remove the anger of their hearts. Allah relenteth toward whom He will. Allah is Knower, Wise.

29:21He punisheth whom He will and showeth mercy unto whom He will, and unto Him ye will be turned.

48:14And Allah's is the Sovereignty of the heavens and the earth. He forgiveth whom He will, and punisheth whom He will. And Allah is ever Forgiving, Merciful.