Sahih al-Bukhari 989
صحيح البخاري#989Sahihحَدَّثَنَا أَبُو الْوَلِيدِ، قَالَ حَدَّثَنَا شُعْبَةُ، قَالَ حَدَّثَنِي عَدِيُّ بْنُ ثَابِتٍ، قَالَ سَمِعْتُ سَعِيدَ بْنَ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم خَرَجَ يَوْمَ الْفِطْرِ، فَصَلَّى رَكْعَتَيْنِ لَمْ يُصَلِّ قَبْلَهَا وَلاَ بَعْدَهَا وَمَعَهُ بِلاَلٌ.
Narrated Ibn `Abbas:The Prophet (ﷺ) went out and offered a two rak`at prayer on the Day of `Id ul Fitr and did not offer any other prayer before or after it and at that time Bilal was accompanying 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: 13:37