Ibn Shihab, in naming those of the Ansar who were martyred on the day of Uhud, then of Banu al-Harith bin al-Khazraj, mentions: Sayyiduna Aws bin Arqam (may Allah be pleased with him); and it is said: Sayyiduna Sulaym Abu Kabshah, the freed slave of the Messenger of Allah (peace and blessings be upon him), who was from the tribe of Daws - Muhammad bin Ishaq mentioned him among those who were present at Badr.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 626