Ibn Shihab al-Zuhri (may Allah have mercy on him) said: "Among the names of those who were present at Badr, from the Ansar, then from Banu Dinar bin al-Najjar, was Bujayr bin Bujayr, who was their ally."
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1235