Surah Az-Zukhruf (The Ornaments of Gold), Verse 66

هَلْ یَنْظُرُوْنَ اِلَّا السَّاعَةَ اَنْ تَاْتِیَهُمْ بَغْتَةً وَّهُمْ لَا یَشْعُرُوْنَ ۟

Hal yanzuroona illas Saa'ata an ta'tiyahum baghtatanw wa hum laa yash'uroon

“Do they only wait for the Hour - that it should come on them all of a sudden, while they perceive not?”

Quran 43:66 (Yusuf Ali Translation)