Al-'Ankabut (The Spider)
Surah 29 · Verse 53
And they ask you to hasten on the punishment, and had it not been (fixed at the end of) an appointed term, the punishment would have come (to them), and it will definitely come to them suddenly while they do not perceive.
The time for the punishment is fixed and it will come all of a sudden and involve the infidels.
