5:115
قَالَ اللّٰهُ اِنّٖی مُنَزِّلُهَا عَلَیْكُمْۚ فَمَنْ یَكْفُرْ بَعْدُ مِنْكُمْ فَاِنّٖٓی اُعَذِّبُهُ عَذَابًا لَٓا اُعَذِّبُهُٓ اَحَدًا مِنَ الْعَالَمٖینَࣖ
Qala Allahu innee munazziluha AAalaykum faman yakfur baAAdu minkum fainnee oAAaththibuhu AAathaban la oAAaththibuhu ahadan mina alAAalameena
Translations
Allah said, "Indeed, I will sent 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
Saheeh International
Allah said: Lo! I send it down for you. And whoso disbelieveth of you afterward, him surely will I punish with a punishment wherewith I have not punished any of (My) creatures
Marmaduke Pickthall