While some claim that religious pluralism is controversial in Islam, Islamic civilizations have been characterized as one of the most religiously pluralist. The primary sources that guide Islam, namely Quran and hadiths, promote the fundamental right to practise an individual's belief, even though it may be a false belief. The acceptability of religious pluralism within Islam remains a topic of active debate, however the vast majority of Islamic scholars and historical evidences reveal Islam's commitment to no coercion in religion, supporting pluralism. Hamed Kazemzadeh, a pluralist orientalist argues that cultural absolutism of ours is, of course, today under heavy pressure, a double pressure of defining and semi-bankrupt imperialism and surprisingly strong counter assertive challenge that changed the mentality of Muslims to have a pluralist identity. Then he highlights the policy method of Islam Messenger in the early Islamic civilization toward other religions.