What is the virtue of the Companion Abu Talha that the Prophet, peace and blessings be upon him, made clear in the Battle of Uhud?

Abu Talhah is Zayd ibn Sahl al-Ansari al-Khazraji, one of the virtuous Companions. He fought before the Prophet, peace and blessings be upon him, on the Day of Uhud, and said to him: "My chest is a shield for yours." The Prophet, peace and blessings be upon him, said: "The voice of Abu Talhah in the army is better than a whole faction." He passed away in the year 34 AH.