حَدَّثَنَا مُحَمَّدُ بْنُ عَرْعَرَةَ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي بِشْرٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ كَانَ عُمَرُ بْنُ الْخَطَّابِ ـ رضى الله عنه ـ يُدْنِي ابْنَ عَبَّاسٍ فَقَالَ لَهُ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ إِنَّ لَنَا أَبْنَاءً مِثْلَهُ‏.‏ فَقَالَ إِنَّهُ مِنْ حَيْثُ تَعْلَمُ‏.‏ فَسَأَلَ عُمَرُ ابْنَ عَبَّاسٍ عَنْ هَذِهِ الآيَةِ ‏ End hadith 1‏ فَقَالَ أَجَلُ رَسُولِ اللَّهِ صلى الله عليه وسلم أَعْلَمَهُ إِيَّاهُ، فَقَالَ مَا أَعْلَمُ مِنْهَا إِلاَّ مَا تَعْلَمُ‏.‏

Narrated Ibn `Abbas: `Umar bin Al-Khattab used to let Ibn `Abbas sit beside him, so `AbdurRahman bin `Auf said to `Umar, "We have sons similar to him." `Umar replied, "(I respect him) because of his status that you know." `Umar then asked Ibn `Abbas about the meaning of this Holy Verse:-- "When comes the help of Allah and the conquest of Mecca . . ." (110.1) Ibn `Abbas replied, "That indicated the death of Allah's Messenger (PBUH) which Allah informed him of." `Umar said, "I do not understand of it except what you understand." Translation Not Available

Book Ref: Sahih Bukhari Book 64 Hadith 4430
Web Ref:  Sahih Bukhari Vol 5 Book 59 Hadith 713