Hadith of the Quran and Sunnah authenticity. The Shi'a claim that this hadith is the most authentic of hadiths, claiming that it has been narrated by over 35 companions of Muhammad. The "Hadith al-Thaqalayn" is used by the Shi'a, among other reasons, to support their belief of Ali's succession to Muhammad. Shi'as view this hadith as a clear indication that Muhammad wished to keep the matter of leadership within his own family, starting with his cousin Ali. They believe that Muhammad was clearly indicating that only the "Ahl al-Bayt" have a right to authority and leadership. It is based on this claim that the Shi'as reject
Hadith terminology "hadith" the text of which contradicts established norms of the Prophet's sayings, or its reporters include a liar. There are several factors which may motivate an individual to fabricate a narration: A number of "hadith" specialists have collected fabricated "hadith" separately in order to distinguish them from other "hadith". Examples include: In "hadith" terminology, a "hadith" is divided into two categories based, essentially, upon the number of narrators mentioned at each level in a particular "isnād". Consideration is given to the least number of narrators at any level of the chain of narration; thus if ten narrators convey a "hadith"