Ta-Ha - 20:4
It has been sent down from the Creator of the earth and the high heavens.
Why is the Qur'an (dhikr) from Allah?
The Women/4:82
Do they not examine the Qur´an? Had it belonged to anyone other than Allah, they would have found many contradictions in it.
The Night Journey/17:88
"Say: "Even if all mankind and jinn gathered together to create the like of this Qur´an and supported each other in it, they could not create the like of it."
The Cave/18:1
Praise be to Allah, Who has sent down the Book to His servant and has left no crookedness in it.
Prophet Hud/11:13
"Do they say: "He fabricated it (the Qur´an)"? Say: "Come on, bring ten suras like it, fabricated. And call all your friends besides Allah, if you are truthful!"
The Poets/26:210
It has not been sent down by the devils.
The Poets/26:211
They are neither able nor capable of it.
The Companies/39:23
Allah has sent down the best hadith in a coherent book in two parts. The skins of those who honor their Lord tremble because of it. Then their skins and hearts soften towards the message of Allah. This is Allah´s guidance; He guides whom He wills and/or guides whom He wills to it. There is no guidance for anyone whom Allah leads astray
The One Wrapping Himself Up/74:30
On it are nineteen.
The Cow/2:23
If you doubt what We have sent down to Our servant, bring a surah like it. And call to your aid all your witnesses besides Allah, if you are truthful.
The Cow/2:24
If you cannot do that, and you will never be able to do that, then beware of the Fire prepared for the disbelievers, whose fuel is mankind and stones.