And even if there were a Quran with which the mountains were made to pass away, or the earth were travelled over with it, or the dead were made to speak thereby; nay! the commandment is wholly Allah's, Have not yet those who believe known that if Allah please He would certainly guide all the people? And (as for) those who disbelieve, there will not cease to afflict them because of what they do a repelling calamity, or it will alight close by their abodes, until the promise of Allah comes about; surely Allah will not fail in (His) promise.

And those who disbelieve say: By no means will we believe in this Quran, nor in that which is before it; and could you see when the unjust shall be made to stand before their Lord, bandying words one with another! Those who were reckoned weak shall say to those who were proud: Had it not been for you we would certainly have been believers.