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 its source. This provides confirmation that the "hadith" is authentically attributed to its source at a level above reasonable doubt. This is due to its being beyond historical possibility that narrators could have conspired to forge a narration. In contrast, an "ahaad hadith" is a narration the chain of which has not reached a number sufficient to qualify as "mutawatir". "Hadiths" can be "mutawatir" in both actual text and meaning: The second category, "ahaad" ( meaning "singular") narration, refers to any "hadith" not classified as "mutawatir". Linguistically, "hadith ahad" refers to a "hadith" narrated by only one narrator. In "hadith"