That He may question the truthful about their truth. And He has prepared for the disbelievers a painful punishment.
The Saheeh International Quran Translation
لِّيَسْـَٔلَ ٱلصَّٰدِقِينَ عَن صِدْقِهِمْ وَأَعَدَّ لِلْكَٰفِرِينَ عَذَابًا أَلِيمًاThat He may question the truthful about their truth. And He has prepared for the disbelievers a painful punishment.