 Muhammad died shortly afterwards, and the Banu Hanifa immediately renounced their new religion, under the leadership of their own self-proclaimed prophet, Musaylima.It is said, however, that Musaylima had declared his prophethood shortly before Muhammad's death, claiming to have been made a partner of Muhammad's in divine revelation.This, along with other apostasy movements in Arabia, triggered the Ridda Wars, in which the Muslims of Medina, under the leadership of the first caliph Abu Bakr, subjugated the rebellious tribes, but not before some heavy losses.