Quran; it claims itself to be a divine, unique, real, preserved, and distinctive message. However, the proof of these claims is not the answers like: "it is written in the Quran!

32:2 The book is, without a doubt, a revelation from the Lord of the universe.

17:88 Say, "If all the humans and all the jinns banded together in order to produce a Quran like this, they could never produce anything like it, no matter how much assistance they lent one another."

2:23 If you have any doubt regarding what we revealed to our servant, then produce one sura like these, and call upon your own witnesses against GOD, if you are truthful.

10:38 If they say, "He fabricated it," say, "Then produce one sura like these, and invite whomever you wish, other than GOD, if you are truthful."

11:13-14 If they say, "He fabricated (the Quran)," tell them, "Then produce ten suras like these, fabricated, and invite whomever you can, other than GOD, if you are truthful." If they fail to meet your challenge, then know that this is revealed with GOD's knowledge, and that there is no god except He. Will you then submit?

2:147 This is the truth from your Lord; do not harbor any doubt.

18:27 You shall recite what is revealed to you of your Lord's scripture. Nothing shall abrogate His words, and you shall not find any other source beside it.

86:13 This is a distinctive narration.

These "challenges" in the Qur'an are not the literary aspect of the book, which is a relative criterion; It defends its mathematical aspect which is universal, objective and rational. In other words, the Quran is not thanks to hafizes or libraries; preserved by God himself, with the mathematics he created ...

4:82 Why do they not study the Quran carefully? If it were from other than GOD, they would have found in it numerous contradictions.

15:9 Absolutely, we have revealed the reminder, and, absolutely, we will preserve it.

85:21-22 Indeed, it is a glorious Quran. In a preserved master tablet.

74:29-30 Obvious to all the people. Over it is nineteen.