قَالَ أَمَّا مَن ظَلَمَHe said:"As for him who does wrong,meaning who persists in his Kufr and in associating others in worship with his Lord,فَسَوْفَ نُعَذِّبُهُwe shall punish him,Qatadah said, i.e., by killing him.ثُمَّ يُرَدُّ إِلَى رَبِّهِ فَيُعَذِّبُهُ عَذَابًا نُّكْرًاand then he will be brought back unto his Lord, Who will punish him with a terrible torment.meaning a severe, far-reaching and painful punishment.This implies a confirmation of the Hereafter and the reward and punishment