Because of a conflict of ideology between Ruhollah Khomeini and Housein Al-Montazeri, his accepted heir, Khomeini requested a revision of Article 109, which held that successors to Khomeini must be a "source of imitation" or having held the title of Marja'. The change to the constitution would not officially come until 6 August 1989, wherein a vote would reduce the qualification to having the authority to issue a fatwa. The debate within the Assembly of Experts on the constitutional change included whether the clerical qualification of Marjaʿiyyat present in Article 109 contributed to the quality of leadership Khomeini was seen as maintaining. The Assembly of Experts, made up of many people who were integral to the revolution of 1979 and in some cases knew Khomeini, concluded Khomeini's leadership was attributed in part to his religious qualifications, but mostly his political motivation and skill.