SWEARING FEALTY FOR LISTENING TO AND OBEYING THE ORDERS OF THE LEADER AS FAR AS POSSIBLE(SAHIH HADITH MUSLIM)Saturday, April 12th, 2008
Chapter# 22, Book 20, Number 4604:
It has been narrated on the authority of Abdullah b. ‘Umar who said: We used to take oath to the Messenger of Allah (may peace be upon him) that we would listen to and obey his orders. He would tell us (to say in the oath): As far as it lies in my power.