It is narrated from Abu al-Yasar Ka'b bin Amr (may Allah be pleased with him) that he said: I came to the Prophet (peace and blessings be upon him) while he (peace and blessings be upon him) was taking the pledge of allegiance from people. I said: "O Messenger of Allah, stretch out your hand so that I may pledge allegiance to you, and set conditions upon me, for you know the conditions best." He (peace and blessings be upon him) said: "I take your pledge that you will worship Allah alone, establish the prayer, pay the zakah, be sincere in goodwill to the Muslims, and separate yourself from the polytheist." Mention of the virtues of Sayyiduna Mu'attib bin al-Hamra' al-Makhzumi (may Allah be pleased with him).