Saeed Ibn Zayd (also known as Abul Awar) was the brother-in-law of Caliph Umar (ra), that is, the husband of Fatima bint Khattab, the sister of Umar (ra) . He was one of the early converts to Islam. Even before his conversion to Islam, he was a Hanif, a monotheist who refrained from paganism at the time, who traditionally kept the religion of Ibrahim (a.s.) still intact, and his predecessor was Hanif. He died in 63 AD at the age of eighty during the reign of Muawiyah I.