Hadithcore
Sahih al-Bukhari, 4843
sahih

Narrated Thabit bin Ad-Dahhak:

who was one of the companions of the tree (those who swore allegiance to the Prophet (ﷺ) beneath the tree at Al-Hudaibiya):

حَدَّثَنِي مُحَمَّدُ بْنُ الْوَلِيدِ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ خَالِدٍ، عَنْ أَبِي قِلاَبَةَ، عَنْ ثَابِتِ بْنِ الضَّحَّاكِ ـ رضى الله عنه ـ وَكَانَ مِنْ أَصْحَابِ الشَّجَرَةِ‏.‏

References2 variants
In-Book Reference
Book 65, Hadith 364
USC-MSA web (English) reference
Vol. 6, Book 60, Hadith 366 (deprecated numbering scheme)