Abu Dawud
General Behavior
Book Number: 036 / Hadith Number: 4756
Narated By Anas ibn Malik : I served the Prophet (pbuh) 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?