حَدَّثَنَا عَبْدُ اللَّهِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ، عَنْ سُفْيَانَ، عَنْ حَبِيبِ بْنِ أَبِي ثَابِتٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ عُمَرَ ـ رضى الله عنه ـ سَأَلَهُمْ عَنْ قَوْلِهِ تَعَالَى ‏ End hadith 5‏ قَالُوا فَتْحُ الْمَدَائِنِ وَالْقُصُورِ قَالَ مَا تَقُولُ يَا ابْنَ عَبَّاسٍ قَالَ أَجَلٌ أَوْ مَثَلٌ ضُرِبَ لِمُحَمَّدٍ صلى الله عليه وسلم نُعِيَتْ لَهُ نَفْسُهُ‏.‏

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." Translation Not Available

Book Ref: Sahih Bukhari Book 65 Hadith 4969
Web Ref:  Sahih Bukhari Vol 6 Book 60 Hadith 493