Muhammad bin Abdullah bin Numayr (may Allah have mercy on him) relates: "(Regarding) Abu Sa'id bin al-Mu'alla, a man from among his descendants told me that his name was Rafi' bin al-Mu'alla al-Ansari, and that he was from Banu Khubayb bin Abd Harithah bin Malik."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4447
Muhammad bin Ishaq (may Allah have mercy on him), mentioning those of the Muslims from the Ansar, then from Banu Khubayb bin Abd Harithah, who were martyred on the Day of Badr with the Messenger of Allah (peace and blessings be upon him), said: "Rafi' bin al-Mu'alla."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4448
Urwah (may Allah have mercy on him) states, among the names of those of the Ansar who were present at Badr: "Rafi' bin al-Mu'alla bin Lawdhan bin Harithah bin Adi bin Zayd bin Tha'labah bin Zayd bin Manat bin Khubayb bin Harithah bin Ghadib bin Jusham bin al-Khazraj; he was martyred on the Day of Badr."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4449
Ibn Shihab al-Zuhri (may Allah have mercy on him) states, among those of the Ansar, then of Banu Zurayq, who were present at Badr: "Rafi' bin al-Mu'alla bin Lawdhan; he was martyred on the Day of Badr."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4450