Sahih al-Bukhari 4163
صحيح البخاري#4163Sahihحَدَّثَنَا مَحْمُودٌ، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ إِسْرَائِيلَ، عَنْ طَارِقِ بْنِ عَبْدِ الرَّحْمَنِ، قَالَ انْطَلَقْتُ حَاجًّا فَمَرَرْتُ بِقَوْمٍ يُصَلُّونَ قُلْتُ مَا هَذَا الْمَسْجِدُ قَالُوا هَذِهِ الشَّجَرَةُ، حَيْثُ بَايَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْعَةَ الرُّضْوَانِ. فَأَتَيْتُ سَعِيدَ بْنَ الْمُسَيَّبِ فَأَخْبَرْتُهُ فَقَالَ سَعِيدٌ حَدَّثَنِي أَبِي أَنَّهُ كَانَ فِيمَنْ بَايَعَ رَسُولَ اللَّهِ صلى الله عليه وسلم تَحْتَ الشَّجَرَةِ، قَالَ فَلَمَّا خَرَجْنَا مِنَ الْعَامِ الْمُقْبِلِ نَسِينَاهَا، فَلَمْ نَقْدِرْ عَلَيْهَا. فَقَالَ سَعِيدٌ إِنَّ أَصْحَابَ مُحَمَّدٍ صلى الله عليه وسلم لَمْ يَعْلَمُوهَا وَعَلِمْتُمُوهَا أَنْتُمْ، فَأَنْتُمْ أَعْلَمُ.
Narrated Tariq bin `Abdur-Rahman:When I set out for Hajj, I passed by some people offering a prayer, I asked, "What is this mosque?" They said, "This is the Tree where Allah's Messenger (ﷺ) took the Ar-Ridwan Pledge of allegiance. Then I went to Sa`id bin Musaiyab and informed him about it. Sa`id said, "My father said that he was amongst those who had given the Pledge of allegiance to Allah's Messenger (ﷺ) beneath the Tree. He (i.e. my father) said, "When we set out the following year, we forgot the Tree and were unable to recognize it. "Then Sa`id said (perhaps ironically) "The companions of the Prophet (ﷺ) could not recognize it; nevertheless, you do recognize it; therefore you have a better knowledge
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: 64:205