He said:
God's messenger was one of the best of men in character. One day he sent me to do something, and I said, "I swear by God that I will not go." But in my heart, I felt I should go to do what God's messenger had commanded me; so, I went out and came upon some boys who were playing in the street. All of a sudden God's messenger who had come up behind caught me by the back of the neck, and when I looked at him, he was laughing. He said, "Did you go where I ordered you, little Anas?" and I replied, "Yes, I am on my way, messenger of God."
Muslim transmitted it.