66هَل يَنظُرونَ إِلَّا السّاعَةَ أَن تَأتِيَهُم بَغتَةً وَهُم لا يَشعُرونَ(Irfan-ul-Quran)What are they waiting for (save) the Hour that should seize them all of a sudden while they have no awareness of it?