Surah Ash-Shu'ara, ayah 202

فَيَأۡتِيَهُم بَغۡتَةٗ وَهُمۡ لَا يَشۡعُرُونَ ٢٠٢

Faya'tiyahum baghtatan wahum lā yash'urūn

And it will come to them suddenly while they perceive [it] not.