Simplify the following text for a Grade 7 native English-speaking person.
Original: At the time Subh-i-Azal was still a teenager , had never demonstrated leadership in the BÃ bÃ movement , and was still living in the house of his older brother , BahÃ ` u 'll Ã h. All of this lends credence to the BahÃ ' Ã claim that the BÃ b appointed Subh-i-Azal the head of the BÃ bÃ Faith so as to divert attention away from BahÃ ` u 'll Ã h , while allowing BÃ bÃ s to visit BahÃ ` u 'll Ã h and consult with Him freely , and allowing BahÃ ` u 'll Ã h to write BÃ bÃ s easily and freely .
Simplified: The BÃ b told everyone that another prophet who was stronger and even more powerful was coming soon . People who follow the BahÃ ' Ã religion believe the BÃ b was talking about BahÃ ` u 'll Ã h , who started the BahÃ ' Ã religion .