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."
English Transliteration
Qala Allahu innee munazziluha AAalaykum faman yakfur baAAdu minkum fainnee oAAaththibuhu AAathaban la oAAaththibuhu ahadan mina alAAalameena
Tafsir of Verse 115
God said, 'Verily I do send it down on you; whoso of you hereafter disbelieves, verily I shall chastise him with a chastisement wherewith I chastise no other being.'
Allah said: "I will send it down unto you: But if any of you after that resisteth faith, I will punish him with a penalty such as I have not inflicted on any one among all the peoples."