Ibn Shihab relates that among the Ansar who took part in Badr, then of Banu Sa'idah bin Ka'b bin al-Khazraj, is the name of Sayyiduna Ziyad bin Amr al-Juhani (may Allah be pleased with him), who was their ally.
Hadith Referenceالمعجم الكبير للطبراني / باب الزاي / 5276