Al-Quran is the main source of Islam's legal, religious, and political teachings. It is a book of guidance that is meant to be understood, followed, and applied by all people. It is the only book that is final, meaning that it is the only final, authoritative, and divine revelation.

The Quran is the only book that has been preserved and is known to be the word of God. It has been called the Glorious Quran because it is the word of God and the best guidance for mankind. It is the only book that has been revealed to be a true religion and a true way of life, and it is the only book that has been preserved.

The Quran is divided into chapters that are called suras. Each sura has a number of verses. The number of verses in each sura is different, and the order of the verses in each sura is different. The Quran is the only book that has been preserved and is known to be the word of God.