Musnad Abu Ya'la al-Mawsili 1:79

Ubayd Allah ibn Umar narrated to us, Mu'adh ibn Mu'adh narrated to us, Shu'bah narrated to us, from Tawbah al-Anbari, from Abdullah ibn Qudamah, from Abu Barzah al-Aslami, who said: A man spoke harshly to Abu Bakr. I almost killed him. Abu Bakr rebuked me and said: "It is not for anyone except the Messenger of Allah, may Allah bless him and grant him peace."