Examples of this form of Ghaib are illustrated in the narrations of Muhammad: It is narrated that Abdullah bin `Umar said that the Messenger of Allah said, “The Keys of the Ghaib (unseen knowledge) are five, nobody knows them but Allah. Nobody knows what will happen tomorrow except Allah; nobody knows what is in the womb except Allah; nobody knows when it will rain except Allah; no soul knows at what place he will die except Allah; and nobody knows when the (Final) Hour will begin except Allah.)