Urwah narrated that among those of the Ansar who took part in Badr, then from Banu Abd bin Ka'b bin Abd al-Ashhal, is the name of Sayyiduna Sa'd bin Zayd bin Malik bin Abd bin Ka'b (may Allah be pleased with him).
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5403