Zirr bin Hubaysh (may Allah have mercy on him) says that I came to Madinah Munawwarah during the caliphate of Hazrat Uthman Ghani (may Allah be pleased with him). The purpose of the journey was to meet Hazrat Ubayy bin Ka'b (may Allah be pleased with him) and other noble companions (may Allah be pleased with them). I met Hazrat Safwan bin Assal (may Allah be pleased with him). I asked him, "Have you seen the Noble Prophet (peace and blessings be upon him)?" He replied, "Yes! I have participated in twelve (12) battles with the Noble Prophet (peace and blessings be upon him)."