The discipline distinguishes narration from methodology, then examines khabar and hadith, isnad and matn, and the ways reports are classified by their routes. Mutawatir is not established by a large number alone; it requires four elements together: sufficient numbers that rule out ordinary collusion, continuity of such numbers at every stage, a sensory foundation, and the production of certainty.
Yaqin is firm conviction corresponding to reality; necessary knowledge occurs without a formal inferential process. These concepts explain the epistemic significance of tawatur.
Next division: Reports falling short of tawatur belong to the broad sphere of ahad, which will be examined under terms such as mashhur, Ężaziz, and gharib.