H 105 - Muhammad bin Abdullah bin Ja’far has narrated from his father from Muhammad bin Isa from Muhammad bin Fadhl from Abu Hamza from Imam Muhammad Baqir that he said:

“Surely Allah sent Muhammad (s) to the Jinn and the humans and He has appointed twelve successors after him. Some have passed, while others are yet to come. The practice continues through each successor. The successors of Muhammad (s) are on the practice of the successors of Isa and they are twelve in number. Amirul Momineen was on the practice of Masih .”