Categories of Hadith Categories of Hadith Different categories of hadith (sayings attributed to the Islamic prophet Muhammad) have been used by various scholars. Experts in the Hadith studies generally use two terms - "taqrīr" for tacit approvals, and "khabar" for sayings and acts ascribed to Muhammad. The term taqrīr implies that, in the presence of Muhammad, a believer did something, which Muhammad noticed but did not disapprove or condemn. Thus, the act done by a believer acquired tacit approval from Muhammad. It is commonly acknowledged that a khabar can be true or false. The scholars of the science of hadith criticism hold that
Criticism of Hadith According to Racha El Omari, early Mutazilites believed that hadith were susceptible to "abuse as a polemical ideological tool"; that the "matn" (content) of the hadith -- not just the "isnad" -- ought to be scrutinized for doctrine and clarity; that hadith "supported by some form of "tawātur"", i.e. by a large number of "isnād" strands, each beginning with a different Companion, were valid. In writing about "mutawatir" (transmitted via numerous chains of narrators) and "ahad" (any ahadith that is not "mutawatir") and its importance from the legal theoretician's point of view, Wael Hallaq notes the medieval scholar Al-Nawawi argued