Excellence of the Prophet (Peace be upon him)

Narrated Anas ibn Malik: I served the Prophet (peace_be_upon_him) at Medina for ten years. I was a boy. Every work that I did was not according to the desire of my master, but he never said to me: Fie, nor did he say to me: Why did you do this? or Why did you not do this? [Abu Dawud: 4756]