Why do Muslims regard the Qur’an as the literal word of God?

In Islamic belief, Muslims regard the Qur’an as the literal word of God because it is understood to be a verbatim transcript of God’s own speech.12

According to traditional Islamic theology, the Qur’an is the earthly reproduction of an uncreated and eternal heavenly original, often referred to as the "well-preserved tablet" (al-lawḥ al-mahfūẓ). Muslims believe that the Prophet Muhammad received these divine revelations through the archangel Gabriel, who read the message to him. Because the text is viewed as the direct, divine communication from Allah to humanity, it is considered the central authority for the Muslim community and is held to be beyond questioning.123