Evaluation of the sects regarded as heterodox by Abdülkâhi̇r el-Baghdadi, from the point of sources

The Controversies among the Muslims starting from the death of prophet Muhammed institutialized afterwards and became sects. Historians of sects registered those sectarian movements and each classified them pecoliar to their methods. Those works named as "Makala" in the beginnigs were continued with the forms of "Firaq", "Milal" and "Nihal". Al-Farq bayn al-Fıraq written by Baghdadi in fifth century of Hijra, has a different character than other works, be cause it has a chapter headed "The sects related to İslam althogh they were not members of İslam". Baghdadi identified the sects he regarded as heteredox and of forwards reasons for that. He introduced their views. That Fanatic Shiite parties loom large in his classification of heterodox is made contact with his period in which subparties of Shiite has an important role politically and socially. He followed same method in his other two workd. It is able to say that he made the sects depend on hadith of seventy there parties because of his admiration for mathematics. This is why, he divided his work. Usul al-din into is main chapter and classified those in is subtities again. Approaches of Nawbahti in his Kummi Kitabu'l-Makalat ve'l-Firaq, Ashary his Makalatül İslam, Malati in his at-Tanbih ve'r-Radd, Isferaini in his et-Tabsir fid Din and Shahristani in his Milal and Nihal to the sects regarded as heteredox in classification of Baghdadi is also important. Keywords: Abdulqahir el-Baghdadi, Usûlü'd-Din, el-Farq Bayn el-Firaq, nübüvvet, âhiret