Mutazilah became very famous sect in the history of Islam by its giving importance to intellect. It is known that, although they put the intellect in the center of thinking, they did not ignore narratives (naql). In this article, the approach of Mutazilah to the value of solitary hadith, one of the most argued subjects of narrative (naql), will be examined. While we were studying this issue, we referred to the book titled "al-Mu’tamad Fi Usul al Fiqh" as the main reference and source for the author of this book, Abu al-Husayn al-Basri, is one of the most leading authors of Mutazilah. He handled the subject of solitary hadith in a very detailed manner. It has been understood that Mutazilah’s views on this issue are not very different from the scholars of Shafii and Hanefi who dealt with the usul al-fıqh. However, they have significant stresses in this subject.