Hadith of the two weighty things in Islam as mutawatir and the authenticity of it is confirmed by numerous chains of transmission of Shia and Sunni Muslim . According to Ayatollah Ja'far Sobhani, the hadith points the authoritative knowledge of the Ahl al-Bayt and the Quran and convinces Muslim to believe in both of them together. In spite of difference over historical interpretation, Hadith al-Thaqalayn can improve the union among the Muslims world. According to Sunni tradition (canonical Hadith compiler Muslim b. al-Hajjaj), Hadith al-Thaqalayn was presented by Muhammad prophet at a grove called Khumm. In this tradition Yazid b.Hayyan , Husayn b.Sabrah and Umar b.Muslim
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"