And who is more unjust than he who forges a lie against Allah, or says: It has been revealed to me; while nothing has been revealed to him, and he who says: I can reveal the like of what Allah has revealed? and if you had seen when the unjust shall be in the agonies of death and the angels shall spread forth their hands: Give up your souls; today shall you be recompensed with an ignominious chastisement because you spoke against Allah other than the truth and (because) you showed pride against His communications.

I will turn away from My communications those who are unjustly proud in the earth; and if they see every sign they will not believe in It; and if they see the way of rectitude they do not take It for a way, and if they see the way of error. they take it for a way; this is because they rejected Our communications and were heedless of them.

That We may show you of Our greater signs:

Then as to Ad, they were unjustly proud in the land, and they said: Who is mightier in strength than we? Did they not see that Allah Who created them was mightier than they in strength, and they denied Our communications?

And We did not show them a sign but it was greater than its like, and We overtook them with chastisement that they may turn.

Certainly he saw of the greatest signs of his Lord.

So he showed him the mighty sign.