What did Jabir bin `Abdullah witness when he saw the Ansar honoring the Prophet Muhammad (saw)?
 Narrated Anas:                     I was in the company of Jabir bin `Abdullah on a journey and he used to serve me though he was older than I. Jarir said, "I saw the Ansar doing a thing (i.e. showing great reverence to the Prophet ) for which I have vowed that whenever I meet any of them, I will serve him."