Sahih al-Bukhari 4162
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by Sa`id bin Al-Musaiyab
Arabic
حَدَّثَنِي مُحَمَّدُ بْنُ رَافِعٍ، حَدَّثَنَا شَبَابَةُ بْنُ سَوَّارٍ أَبُو عَمْرٍو الْفَزَارِيُّ، حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِيهِ، قَالَ لَقَدْ رَأَيْتُ الشَّجَرَةَ، ثُمَّ أَتَيْتُهَا بَعْدُ فَلَمْ أَعْرِفْهَا. قَالَ مَحْمُودٌ ثُمَّ أُنْسِيتُهَا بَعْدُ.
English translation
Narrated Sa`id bin Al-Musaiyab:That his father said, "I saw the Tree (of the Ar-Ridwan Pledge of allegiance) and when I returned to it later, I was not able to recognize it. (The sub--narrator Mahmud said, Al-Musaiyab said, 'Then I forgot it (i.e., the Tree)
Reference: Sahih al-Bukhari 4162, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.