Muhammad Is Not the Father of Any of Your MenThe Islamic claim to supersede Judaism and Christianity is embodied in the theological assertion that the office of prophecy is hereditary but that the line of descent ends with Muhammad, who is the seal, or last, of the prophets. While Muhammad had no natural sons who reached the age of maturity, he is said to have adopted a man named Zayd, and mutual rights of inheritance were created between the two. Zayd b. Muhammad, also known as the Beloved of