Sahih al-Bukhari 1798
صحيح البخاري#1798Sahihحَدَّثَنَا مُعَلَّى بْنُ أَسَدٍ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، حَدَّثَنَا خَالِدٌ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ لَمَّا قَدِمَ النَّبِيُّ صلى الله عليه وسلم مَكَّةَ اسْتَقْبَلَتْهُ أُغَيْلِمَةُ بَنِي عَبْدِ الْمُطَّلِبِ، فَحَمَلَ وَاحِدًا بَيْنَ يَدَيْهِ وَآخَرَ خَلْفَهُ.
Narrated Ibn `Abbas:When the Prophet (ﷺ) arrived at Mecca, some boys of the tribe of Bani `Abdul Muttalib went to receive him, and the Prophet (ﷺ) made one of them ride in front of him and the other behind him
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: 26:23