Musnad Abu Ya'la al-Mawsili 148:85

Zuhayr ibn Harb narrated to us, Ishaq ibn Yusuf narrated to us, Zakariya ibn Abi Za'idah narrated to us, from Sa'id ibn Abi Burdah, from Anas, who said: I served the Messenger of Allah, may Allah bless him and grant him peace, for nine years. I do not know that he ever said to me, "Why did you do such and such?" nor did he ever criticize anything I did.