Hadith of the Quran and Sunnah and my Sunna." Hadith literature refers to the oral tradition about the words and deeds (Sunnah) of Muhammad. The statement that Islam has these two sources has been attributed to Muhammad. The Sunni Muslims accept this attribution as "sahih" (authentic) and hence a "hadith"; whereas the Shi'a Muslims reject this as being "mawdoo" (fabricated), and not a separate "hadith", arguing that nowhere is it recorded in the Six Authentic Books of the Sunni's (Sahih Sitta). The hadith in the Six Authentic Books are generally accept as authentic throughout Islam. The Qur'an and Sunnah hadith is reported in other books as
Introduction to the Science of Hadith category, which comprises 21 types, relates to the names of the narrators. This includes the definition of a "ṣaḥābī" (companion), a "tābi`ī" (follower), the time periods of narrators, names and paidonymics among others. Later scholars included additional types of hadith in their own works, with some almost reaching 100. The "Introduction" became the basis for subsequent books in hadith terminology. A number of subsequent scholars followed Ibn al-Ṣalāḥ in the ordering of his book, including al-Nawawī, Ibn Kathīr, al-ʻIraqi, al-Bulqīnī, Ibn al-Jamā`ah, al-Tabrīzī, al-Ṭībī and al-Zirkashī. In many instances this influence was direct, with numerous scholars authoring books indicating its