Sahih al-Bukhari 3902
صحيح البخاري#3902Sahihحَدَّثَنَا مَطَرُ بْنُ الْفَضْلِ، حَدَّثَنَا رَوْحٌ، حَدَّثَنَا هِشَامٌ، حَدَّثَنَا عِكْرِمَةُ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ بُعِثَ رَسُولُ اللَّهِ صلى الله عليه وسلم لأَرْبَعِينَ سَنَةً، فَمَكُثَ بِمَكَّةَ ثَلاَثَ عَشْرَةَ سَنَةً يُوحَى إِلَيْهِ، ثُمَّ أُمِرَ بِالْهِجْرَةِ فَهَاجَرَ عَشْرَ سِنِينَ، وَمَاتَ وَهُوَ ابْنُ ثَلاَثٍ وَسِتِّينَ.
Narrated Ibn `Abbas:Allah's Messenger (ﷺ) started receiving the Divine Inspiration at the age of forty. Then he stayed in Mecca for thirteen years, receiving the Divine Revelation. Then he was ordered to migrate and he lived as an Emigrant for ten years and then died at the age of sixty-three (years)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 63:127