23:15
Al-Mu'minun 15
Surah Al-Mu'minun (المؤمنون), verse 15 — reference 23:15. Arabic text with optional translation and free audio on Al-Qalam.
ثُمَّ إِنَّكُم بَعْدَ ذَٰلِكَ لَمَيِّتُونَ
thumma innakum baʿda dhālika lamayyitūna
Then indeed, after that you are to die.