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 "musnad" ( meaning "supported") "hadith" as: A "musnad hadith" should not be confused with the type of "hadith" collection similarly termed "musannaf", which is arranged according to the name of the companion narrating each "hadith". For example, a "musnad" might begin by listing a number of the "hadith", complete with their respective "sanads", of Abu Bakr, and then listing a number of "hadith" from Umar, and then Uthman ibn Affan and so on. Individual compilers of this type of collection may vary in their method of arranging those Companions whose "hadith" they were collecting. An example of this type of