(V.7:187): Narrated ‘Abdullâh رضي الله عنه: Allâh’s Messenger صلى الله عليه وسلم said, "The keys of the unseen are five: Verily Allâh! With Him (Alone) is the knowledge of the Hour, He sends down the rain, and knows that which is in the wombs. No person knows what he will earn tomorrow, and no person knows in what land he will die. Verily, Allâh is All-Knower, All-Aware." (V.31:34). (Sahih Al-Bukhâri, Vol. 6, hadîth No. 151).