Ibn Shihab narrated that among those of the Ansar who took part in Badr, then from Banu Amr bin al-Salm bin Malik bin al-Aws, is the name of Sayyiduna Sa'd bin Khaythamah (may Allah be pleased with him).
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5392