The Qur'an is the very word of God, Almighty. A complete record of the exact words revealed by God through the Angel Gabriel to the Prophet Muhammad.
The Qur'an was memorized by Muhammad and his followers, dictated to his companions, and written down by scribes, who cross-checked it during the Prophet's lifetime. Not one word of its 114 surahs (parts or chapters) has been changed over the centuries. The Qur'an is in every detail the same unique and miraculous text that was revealed to Muhammad fourteen centuries ago.
The Qur'an is the principal source of every Muslim's faith and practice. It deals with all subjects that concern us as human beings, including wisdom, doctrine, worship and law; but its basic theme is the relationship between God and His creatures. At the same time, the Qur'an provides guidelines for a just society, proper human conduct and equitable economic principles.