As for those who reject Our signs as false, We shall lead them, step by step, to their ruin without their even perceiving it. 182 And I grant them respite; surely My scheme is effective. 183 Have they not pondered that their companion [i.e. the Prophet Muhammad] is not afflicted with insanity? He is only a plain warner. 184 Do they not look in the dominion of the heavens and the earth and all things that Allah has created, and that it may be that the end of their lives is near. In what message after this will they then believe? 185 Whomsoever Allah causes to err, there is no guide for him; and He leaves them alone in their inordinacy, blindly wandering on. 186 They ask you [Prophet] about the Last Hour, "When will it come?" Say, "Knowledge about it rests only with my Lord; He alone will reveal when its time will come, it lies heavy on the heavens and the earth: it will suddenly overtake you." They will put questions to you as though you had full knowledge of it. Say, "Knowledge about it rests only with God, though most people do not realize it." 187 Say, “I have no autonomy to benefit or hurt myself, except what Allah wills; and were I to procure knowledge of the hidden on my own, it would be that I had accumulated a lot of good; and no misfortune would touch me; I am purely a Herald of Warning and Glad Tidings to the people who believe.” 188