The hadith which fulfills the four conditions of Mutawatir:
SB (a) EB It is narrated by a large number of narrators.
SB (b) EB Human intellect and custom consider it impossible for them to lie.
SB (c) EB This abundance exists in every generation of the chain from the era of prophethood until the time of the compiler of the book.
SB (d) EB The hadith relates to human observation or hearing.
Note: A group of narrators who have heard the hadith from one or more teachers is called a "generation" (Tabaqah).