"The group now known as Sunnis chose Abu Bakr, the prophet's adviser, to become the first successor, or caliph, to lead the Muslim state. Shiites favored Ali, Muhammad's cousin and son-in-law. Ali and his successors are called imams, who not only lead the Shiites but are considered to be descendants of Muhammad". said https://historynewsnetwork.org › article
WANING DONT COPY WHAT I TYPED WORD FOR WORD IT JUST TO GIVE YOU SOME IDEAS
Answer: Shiites believe the Prophet Mohammed should have been succeeded by his son-in-law, Imam Ali, and leadership of the Muslim world should pass through the prophet's descendants. Sunnis don't believe the leadership of the Muslim world should necessarily pass through hereditary succession.
