The Role of Buyid Rulers in Spreading The Idea of Proximity of Religions during the 4th and 5th Centuries AH

The 4th and 5th centuries AH are among the centuries in which the golden and prosperity era of Islamic civilization has been created. Centuries in which the spirit of the government system was combined with religious tolerance with all religions operating within the framework of Islamic sharia through the Shiite government of the Buyids.A policy that not only fulfilled the golden age of Islamic culture and civilization in this period, but also became one of the most important reasons for the sustainability and preservation of the power of this dynasty, and the growth of scientific life and the emergence of a range of Imamiyya Shiite scholars and jurists who, with their performance, gave life to the idea of approximation in the corpus of the world of Islam and brought it to the height of authority. Considering this, the present study was conducted with a descriptiveanalytical method and using a library method with the question of what role did the rulers of the Buyids play in spreading the idea of approximation of religions during the 4th and 5th centuries AH?Based on the preliminary hypothesis of the Buyids, using the policy of tolerance against different religious tendencies, close relationship with scholars of different religions, and employing people from them in different government places, forming scientific-cultural meetings and associations with the elders of sects and religions, and providing the necessary platforms for the approximate activities of Imamiyya scholars and jurists, playeda significant role in the process of cultural and religious developmentsduring the 4th and 5th centuries AH.