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 al-Harith bin al-Khazraj: Tamim bin Yu'ar bin Qays bin Adi bin Umayyah."
Hadith Referenceالمعجم الكبير للطبراني / باب التاء / 1276