Categories of Hadith a khabar and, therefore, a hadith can be a true report or a concoction. It is on the basis of this premise that the Muslim scholars hold that a hadith offers a "ẓannī" (inconclusive/probably true) evidence. It is as though a hadith may have many possibilities on the plane of reliability. In one of the major works in the science of hadith, Al-Khatib al-Baghdadi has divided the individual narratives in the following categories, according to their epistemic value: Categories of Hadith Different categories of hadith (sayings attributed to the Islamic prophet Muhammad) have been used by various scholars. Experts in
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