Narrated Abu Musa (radiyallaahu-anhu): Two men from my tribe and I entered upon the Prophet (sallal-laahu-alayhi-wasallam). One of the two men said to the Prophet (sallal-laahu-alayhi-wasallam), ‘’O Allaah’s Messenger! Appoint me as a governor,’ and so did the second. The Prophet (sallal-laahu-alayhi-wasallam) said, ‘’We do not assign the authority of the ruling to those who ask for it, nor those who are keen to have it.’’ [Saheeh Al-Bukhaari, Hadeeth Number 7149]