Surah Al-Isra' (The Night Journey), Verse 10

وَّاَنَّ الَّذِیْنَ لَا یُؤْمِنُوْنَ بِالْاٰخِرَةِ اَعْتَدْنَا لَهُمْ عَذَابًا اَلِیْمًا 

Wa annal lazeena laa yu'minoona bil aakhirati a'tadnaa lahum 'azaaban aleemaa

“And to those who believe not in the Hereafter, (it announceth) that We have prepared for them a Penalty Grievous (indeed).”

Quran 17:10 (Yusuf Ali Translation)