Muslim version of a primordial faith that has been revealed before through many prophets including Abraham, Ishmael, Isaac, Moses, and Jesus; that these previous messages and revelations have been partially changed or corrupted over time ("tahrif") and that the Qur'an is the final unaltered revelation from God (Final Testament). The religious practices of Muslims are enumerated in the Five Pillars of Islam: the declaration of faith ("shahadah"), daily prayers ("salat"), fasting during the month of Ramadan ("sawm"), almsgiving ("zakat"), and the pilgrimage to Mecca ("hajj") at least once in a lifetime. To become a Muslim and to convert to Islam, it
Criticism of the Bahá'í Faith view, it is impossible for either any prophet after Muhammad or any new religion to come into existence, and thus they reject the Bahá'í Faith. Some Muslims claim that the idea of oneness of humanity is not a new principle; They claim that Islam espouses such a principle. Fanatical Shīʿites have been known to picture the faith as a "heresy" or "a political movement". Many Islamic scholars reject all prophets after Muhammad, and regard Bahá'ís as apostates if they had been Muslims before conversion. Critics also argue that, despite the Bahá'í Faith's claim of unity, there are numerous theological differences