64 HIKMATUNA, Vol. 1 No. 2 Desember 2015 M TASHIH AND TADH’IF METHOD (A STUDY ON SUNAN AL-MUJTABA AN- NASA’I) Kasan Bisri, MA 1 UIN Walisongo Semarang bisri75@gmail.com Abstract This article tries to elaborate and analyze the method of tashih and tadh’if for hadits used by an-Nasa’i, a muhaddits in third century of Hijra (codification era), in his book Sunan al-Mujtaba. It aims to map an- Nasa’i in the middle of others muhadditsun. There are three questions to answer in this article; first, what method is used by an-Nasa’i in selecting and verifying hadits? Second, to what extend consistency of an-Nasa’i in applying his method, so we could identify why did ulama consider him as a mutasyaddid? Third, what is excess and special quality on method of tashih and thad’if of an-Nasa’i?. this research concluded some points; Firstly an-Nasa’i formulized a set of characters and principles of authentic hadits. Afterward he used those principles to conduct tashihwatadh’if and to verify the authenticity of hadits one by one. The characters of authentic hadits are; all transmitters are tsiqqah, chain of transmitters must continue (ittishol), hadits should be free of syadz and illat. Secondly, consistency of an-Nasa’i could be seen from three points; 1) his critic to transmitters, 2) the usage of word of transmission, 3) annotations of an-Nasa’i in al- Mujtaba. Thirdly, the strictness, tasyaddud, of an-Nasa’i makes him different from others. This shows us his intention to keep hadits away from mistakes and deviation, and it is a positive sense. A same effort, 1. A lecture of Ushuluddin and Humaniora Faculty, UIN Walisongo Semarang. A doctoral student of Postgraduate Program of UIN Walisongo Semarang.