Urwah, in naming those of the Ansar who were present at al-Aqabah, then of Banu Amr bin Malik bin al-Najjar, who were also present at Badr, mentions: Sayyiduna Aws bin Thabit bin al-Mundhir (may Allah be pleased with him), who was a Companion of Badr.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 619