Sahih Bukhari

Narrated Ibn `Abbas:`Umar asked the people regarding Allah's Statement: 'When comes the Help of Allah (to you O Muhammad against your enemies) and the conquest of Mecca.' (110.1) They replied, ""It indicates the future conquest of towns and palaces (by Muslims)."" `Umar said, ""What do you say about it, O Ibn `Abbas?"" I replied, ""(This Surat) indicates the termination of the life of Muhammad. Through it he was informed of the nearness of his death