And if you are in doubt as to that which We have revealed to Our servant, then produce a chapter like it and call on your witnesses besides Allah if you are truthful.

Say: Tell me if the chastisement of Allah should overtake you or the hour should come upon you, will you call (on others) besides Allah, if you are truthful?

He it is Who created you from a single being, and of the same (kind) did He make his mate, that he might incline to her; so when he covers her she bears a light burden, then moves about with it; but when it grows heavy, they both call upon Allah, their Lord: If Thou givest us a good one, we shall certainly be of the grateful ones.

Or do they say: He has forged it? Say: Then bring a chapter like this and invite whom you can besides Allah, if you are truthful.

Or, do they say: He has forged it. Say: Then bring ten forged chapters like it and call upon whom you can besides Allah, if you are truthful.

Their messengers said: Is there doubt about Allah, the Maker of the heavens and the earth? He invites you to forgive you your faults and to respite you till an appointed term. They said: You are nothing but mortals like us; you wish to turn us away from what our fathers used to worship; bring us therefore some clear authority.

And warn people of the day when the chastisement shall come to them, then those who were unjust will say: O our Lord! respite us to a near term, (so) we shall respond to Thy call and follow the messengers. What! did you not swear before (that) there will be no passing away for you!

They shall say: Did not your messengers come to you with clear arguments? They shall say: Yea. They shall say: Then call. And the call of the unbelievers is only in error.

Say: Have you considered what you call upon besides Allah? Show me what they have created of the earth, or have they a share in the heavens? Bring me a book before this or traces of knowledge, if you are truthful.