Abu al-Qasim al-Khoei
Leading up to the Iranian Revolution of 1979, many of the highest-ranking clergy in Shia Islam held to the standard doctrine of the Imamate, which allows political rule only by Muhammad or one of his true successors. They were opposed to creating an Islamic state (see Ayatollah Ha'eri Yazdi (Khomeini's own teacher), Ayatollah Borujerdi, Grand Ayatollah Shariatmadari, and Grand Ayatollah Abu al-Qasim al-Khoei). Contemporary theologians who were once part of the Iranian Revolution also became disenchanted and critical of the unity of religion and state in the Islamic Republic of Iran, are advocating secularization of the state to preserve the purity of the Islamic faith (see Abdolkarim Soroush and Mohsen Kadivar).