Surah Ali 'Imran — Ayah 56 (3:56)
فَأَمَّا ٱلَّذِينَ كَفَرُواْ فَأُعَذِّبُهُمۡ عَذَابٗا شَدِيدٗا فِي ٱلدُّنۡيَا وَٱلۡأٓخِرَةِ وَمَا لَهُم مِّن نَّٰصِرِينَ ٥٦
English translation (Saheeh International)
And as for those who disbelieved, I will punish them with a severe punishment in this world and the Hereafter, and they will have no helpers."
Brief commentary
As for those who disbelieved you and the truth you brought to them, I will punish them severely in the world by making them suffer being killed, imprisoned and disgraced; and in the Afterlife, I will punish them in the fire of Hell. They will have no one to help them against the punishment.