Sahih al-Bukhari 5982
صحيح البخاري#5982Sahihحَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، قَالَ أَخْبَرَنِي ابْنُ عُثْمَانَ، قَالَ سَمِعْتُ مُوسَى بْنَ طَلْحَةَ، عَنْ أَبِي أَيُّوبَ، قَالَ قِيلَ يَا رَسُولَ اللَّهِ، أَخْبِرْنِي بِعَمَلٍ، يُدْخِلُنِي الْجَنَّةَ.
Narrated Abu Ayyub Al-Ansari:It was said" "O Allah's Messenger! Inform me of a deed which will make me enter Paradise." (continues through a different chain in the next hadith)
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: 78:13