18فَهَل يَنظُرونَ إِلَّا السّاعَةَ أَن تَأتِيَهُم بَغتَةً ۖ فَقَد جاءَ أَشراطُها ۚ فَأَنّىٰ لَهُم إِذا جاءَتهُم ذِكراهُم(Irfan-ul-Quran)So are they (the deniers) now just waiting for the Last Hour to come upon them all of a sudden? Its Signs have no doubt drawn (near). But what (good) will their admonition do to them when the Last Hour (itself) approaches?