What did the Prophet Muhammad (saw) instruct Jarir to do?
 It is narrated on the authority of Jarir that he observed:                      I owed allegiance to the Apostle of Allah (may peace and blessings be upon him) on hearing ( is commands) and obeying (them) and the Prophet) instructed me (to act) as lay in my power, and sincerity and goodwill for every Muslim.