Sahih al-Bukhari 4175

Arabic

حَدَّثَنِي مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا ابْنُ أَبِي عَدِيٍّ، عَنْ شُعْبَةَ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ بُشَيْرِ بْنِ يَسَارٍ، عَنْ سُوَيْدِ بْنِ النُّعْمَانِ ـ وَكَانَ مِنْ أَصْحَابِ الشَّجَرَةِ ـ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَأَصْحَابُهُ أُتُوا بِسَوِيقٍ فَلاَكُوهُ‏.‏ تَابَعَهُ مُعَاذٌ عَنْ شُعْبَةَ‏.‏

English translation

Narrated Suwaid bin An-Nu`man:who was one of those who witnessed (the Pledge of allegiance beneath) the Tree: Allah's Messenger (ﷺ) and his companions were given Sawiq and they chewed it

Reference: Sahih al-Bukhari 4175, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.