b namely, “kita>b ‘Ulu>m al-Hadith Li Ibn al-S{ala>h}” that researchers using the original source in discovering new theories. The results showed that “Manhaj bin al-S{ala>h} in kita>b‘ulum found; (1) kita>b ‘ulu>m al-H{adith is the best than others which written by experts of h{Adith; (2) The discussion is not structured to systematize currently; (3) kita>b to be literature for hadith disciplines. The implications is kita>b includes particulars contained in various kita>b previously and covering all branches of h{adith science. Then in kita>b, the reader will see how kita>b is structured carefully and has its own characteristics that make different from the previous ones. " />