Urwah relates that among the Ansar, then of Banu Abd al-Ashhal bin Za'ura', who were martyred with Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) on the day of the Bridge of al-Mada'in, the name of Sayyiduna Sa'd bin Salamah (may Allah be pleased with him) is included.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5454
Muhammad bin Ishaq said that among the Ansar who were martyred on the Day of the Bridge (al-Jisr), then from Banu Abd al-Ashhal, then from Banu Za'ura', is the name of Sayyiduna Sa'd bin Salamah (may Allah be pleased with him).
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5455