Sahih Bukhari · Hadith 4226
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) - كتاب المغازى
حدثني محمد بن بشار، حدثنا ابن أبي عدي، عن شعبة، عن يحيى بن سعيد، عن بشير بن يسار، عن سويد بن النعمان وكان من أصحاب الشجرة كان رسول الله صلى الله عليه وسلم وأصحابه أتوا بسويق فلاكوه. تابعه معاذ عن شعبة.
Narrated Suwaid bin An-Nu`man: who was one of those who witnessed (the Pledge of allegiance beneath) the Tree: Allah's Apostle and his companions were given Sawiq and they chewed it.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).