The Quran is the holy book of Islam. It contains guidance from Allah to mankind, as well as descriptions of the hereafter and the stories of prophets. The Quran is believed by Muslims to be a revelation from God, revealed to Muhammad through the archangel Gabriel.
The Quran contains verses that are believed by Muslims to be the direct word of God. It is also considered by many Muslims to be a book that is without error and should not be questioned or analyzed critically.