Musnad Abu Ya'la al-Mawsili 117:138

Narrated to us Abd al-Rahman ibn Salam, narrated to us Hammad, from Thabit, from Anas: That Abu Talha al-Ansari was, on the day of Uhud, shooting [arrows] in front of the Messenger of Allah, may Allah bless him and grant him peace, and the Messenger of Allah was behind him. And Abu Talha was a man who was an archer. And whenever he would shoot, the Prophet, may Allah bless him and grant him peace, would raise his person to look at where his arrow landed.