Ridauddin b. Fahruddin : A Tatar Scholar of The Hadith. Ridauddin b.Fahruddin, a famous Islamic Tatar scholar, was born in 1859 in Almad-Tataristan. After completinghis education he used to work in different duties like al-imam and al-mudarris (teacher) al-qadiand al-mufti in Orenburg and Ufa-Russia. He wrote more than 50 books and 410 articles and he left40 volumes manuscripts. When he died in 12 April 1936 in Ufa, he had left a lot of valuable works.Furthermore he was the publisher of the journal of al-Shurah.Because of his huge contribution to Islamic sciences two Ph.D. theses were prepared and publishedabout him in Turkey; but none of them dealt with his contribution to The Hadith. He wrote onalmost every aspect of Hadith. Because of this lack we wanted to make clear his views about TheSunna and The Hadith depending on his two important works on the hadith. One of this works isThe Six Books and Their Authors (Kutub-i Sitte Ve Muellifleri), and the other is the Commentary ofJawamiu’l-Kalim (Cevâmiu’l-Kelim Serhi). We found out that his works also made importantcontributions to The Hadith and its history, although his works give us very important informationon The Hadith and The Sunnah in Tataristan at his ages