26:201
Ash-Shu'ara 201
Surah Ash-Shu'ara (الشعراء), verse 201 — reference 26:201. Arabic text with optional translation and free audio on Al-Qalam.
لَا يُؤْمِنُونَ بِهِۦ حَتَّىٰ يَرَوُا۟ ٱلْعَذَابَ ٱلْأَلِيمَ
lā yu'minūna bihi ḥattā yarawū l-ʿadhāba l-alīma
They will not believe in it until they see the painful punishment.