Urwah (may Allah have mercy on him) narrates, regarding those of the Ansar who took part in Badr: "Rafi' bin al-Harith bin Sawwad bin Zayd bin Tha'labah."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4459
Ibn Shihab al-Zuhri (may Allah have mercy on him) narrates, regarding those of the Ansar who took part in Badr, then from Banu al-Najjar: "Rafi' bin al-Harith bin Sawwad."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4460