[Machine] I went as a pilgrim and passed by a group of people praying near a mosque. They said, "This is the tree of the pledge of allegiance of Ridwan, when the Messenger of Allah ﷺ took the oath of allegiance." So I came to Sa'id ibn Al-Musayyib and informed him, and he said, "My father told me that it was under the tree of the pledge of allegiance." He said, "When we left the following year, we forgot about it and could not find it." Sa'id said, "If the companions of the Messenger of Allah ﷺ did not know about it but you know, then you are more knowledgeable."
خَرَجْتُ حَاجًّا فَمَرَرْتُ بِقَوْمٍ يُصَلُّونَ عِنْدَ مَسْجِدٍ يَقُولُونَ هَذِهِ شَجَرَةُ بَيْعَةِ الرِّضْوَانِ حِينَ بَايَعَ رَسُولُ اللهِ ﷺ فَأَتَيْتُ سَعِيدَ بْنَ الْمُسَيِّبِ فَأَخْبَرْتُهُ فَقَالَ حَدَّثَنِي أَبِي أَنَّهُ «كَانَ فِيمَنْ بَايَعَ رَسُولَ اللهِ ﷺ تَحْتَ الشَّجَرَةِ» قَالَ فَلَمَّا خَرَجْنَا مِنَ الْعَامِ الْمُقْبِلِ نَسِينَاهَا فَلَمْ نَقْدِرْ عَلَيْهَا قَالَ سَعِيدٌ «فَإِنْ كَانَ أَصْحَابُ رَسُولِ اللهِ ﷺ لَمْ يَعْلَمُوهَا وَعَلِمْتُمُوهَا فَأَنْتُمْ أَعْلَمُ»