Surah Al-Ma'idah, ayah 115

5:115

قَالَ ٱللَّهُ إِنِّي مُنَزِّلُهَا عَلَيۡكُمۡۖ فَمَن يَكۡفُرۡ بَعۡدُ مِنكُمۡ فَإِنِّيٓ أُعَذِّبُهُۥ عَذَابٗا لَّآ أُعَذِّبُهُۥٓ أَحَدٗا مِّنَ ٱلۡعَٰلَمِينَ ١١٥

Qālallāhu innī munazziluhā 'alaykum faman yakfur ba'du minkum fa innī u'addhibuhū 'adhābal lā u'addhibuhū ahadam minal-'ālamīn

Allāh said, "Indeed, I will send it down to you, but whoever disbelieves afterwards from among you - then indeed will I punish him with a punishment by which I have not punished anyone among the worlds."