The affirmation of Divine unity is of two sorts. For example, if the goods of a rich man arrive in a market or a town, there are two ways in which one may know they are his. One is briefly and simply, as with ordinary people, which is: “No one apart from him is capable of owning this vast amount of goods.” But when under the supervision of a common man such as that, much of it may be stolen. Many others may claim ownership of parts of it. The second sort is this: through reading his writing on every packet, recognizing his signature on every roll, and seeing his seal on every bill, the man declares: “Everything belongs to that person.” Here, everything in effect shows the important man. Similarly, the affirmation of Divine unity is of two sorts:

One is the superficial and common affirmation of Divine unity which says: “Almighty God is One, He has no partner or like. This universe is His.”

The Second is the true affirmation of Divine unity which, through seeing on everything the stamp of His power, the seal of His dominicality, and the inscriptions of His pen, is to open a window directly onto His light from everything and to confirm and believe with almost the certainty of seeing it that everything emerges from the hand of His power and that in no way has He any partner or assistant in His Godhead or in His dominicality or in His sovereignty, and thus to attain to a sort of perpetual awareness of the Divine presence.

(First Flash From The Twenty-Second Word - Risale-i.Nur Collection)

15. The true Muslim believes that the Qur’an is the word of God revealed to Muhammad through the agency of the Angel Gabriel.

The Qur’an was revealed from God piece by piece on various occasions to answer certain questions, solve certain problems, settle certain disputes, and to be man’s best guide to the truth of God and eternal happiness. Every letter in the Qur’an is the word of God, and every sound in it is the true echo of God’s voice. The Qur’an is the First and most authentic Source of Islam. It was revealed in Arabic, it is still and will remain in its original and complete Arabic version, because God has made it His concern to preserve the Qur’an, to make it always the best guide for man, and safeguard it against corruption (cf. 4:82; 15:9; 17:9; 41:41-44; 42:7, 52-53).