Do they not reflect within themselves: Allah did not create the heavens and the earth and what is between them two but with truth, and (for) an appointed term? And most surely most of the people are deniers of the meeting of their Lord.

And those who disbelieve say: The hour shall not come upon us. Say: Yea! by my Lord, the Knower of the unseen, it shall certainly come upon you; not the weight of an atom becomes absent from Him, in the heavens or in the earth, and neither less than that nor greater, but (all) is in a clear book