‏البر والصلة والآداب‏ : Hadeeth No:6314 Abu Huraira reported: I heard Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: One is not strong because of one's wrestling skillfully. They said: Allaah's Messenger, then who is strong? He said: He who controls his anger when he is in a fit of rage....

‏الجهاد والسير‏ : Hadeeth No:4407 The same tradition has been narrated through a different chain of transmitters on the authority of A'mash. This version contains the words: Ila amrin yofzi'una instead of Ila amrin na'rifuhu....