It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that she said: "There were three people from the Ansar such that, after the Messenger of Allah (peace and blessings be upon him), there was no one among the people who was counted as surpassing them in virtue: Sayyiduna Sa'd bin Mu'adh (may Allah be pleased with him), Sayyiduna Usayd bin Hudayr (may Allah be pleased with him) and Sayyiduna Abbad bin Bishr (may Allah be pleased with him)."
No one narrated this hadith from Yahya (bin Abbad) (may Allah have mercy on him) except Muhammad (bin Ishaq) (may Allah have mercy on him).