Anas b. Malik reported
I served the Messenger of Allah (ﷺ) for ten years, and, by Allah, he never said to me any harsh word, and he never said to me about a thing as to why I had done that and as to why I had not done that. Abu Rabi' has made this addition (in this narration):" The work which a servant should do." There is no mention of his words" By Allah".
This hadith has been narrated on the authority of Anas through another chain of transmitters.
Anas reported
When Allah's Messenger (ﷺ) came to Medina, Abla Talha took hold of my hand and brought me to Allah's Messenger (ﷺ) and said: Allah's Messenger, Anas is a prudent young boy, and he will serve you. He (Anas) said: I served him in journey and at home, but, by Allah, he never asked me about a thing which I did as to why I did so, nor about a thing which I did not do as to why I had not done that.
Anas reported Allah's Messenger (ﷺ) as saying
I served the Messenger of Allah (ﷺ) for nine years , and I do not know (of any instance) when he said to me : Why you have done this and that , and he never found fault with me in anything.
Anas reported that Allah's Messenger (ﷺ) had the best disposition amongst people. He sent me on an errand one day, and I said
By Allah , I would not go. I had , however , this idea in my mind that I would do as Allah's Apostle (ﷺ) had commanded me to do. I went out until I happened to come across children who had been playing in the street. In the meanwhile , Allah's Messenger (ﷺ) came there and he caught me by the back of my neck from behind me. As I looked towards him I found him smiling and he said : Unais , did you go where I commanded you to go ? I said : Allah's Messenger , yes , I am going.
Anas further said
I served him for nine years but I know not that he ever said to me about a thing which I had done why I did that , or about a thing I had left as to why I had not done that.
Anas b. Malik reported that Allah's Messenger (ﷺ) was the best amongst people in disposition and behaviour.