Sahih al-Bukhari 6274
صحيح البخاري#6274Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا بِشْرٌ، مِثْلَهُ، وَكَانَ مُتَّكِئًا فَجَلَسَ فَقَالَ " أَلاَ وَقَوْلُ الزُّورِ ". فَمَا زَالَ يُكَرِّرُهَا حَتَّى قُلْنَا لَيْتَهُ سَكَتَ.
Narrated Bishr:as above (No. 290) adding: The Prophet (ﷺ) was reclining (leaning) and then he sat up saying, "And I warn you against giving a false statement." And he kept on saying that warning so much so that we said, "Would that he had stopped
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: 79:48