To believe in Mahdaviat in the Islamic Society

To believe in Mahdi (A.S.) and mahdaviat was not and is not an innovations and deviations but it is originated from one hundred or thousands of a narrative or narrations of the last prophet (P.U.H.), His followers, his dependants and the sincere Imamans (A.S.).
It is rooted from the original true references of Quran, and Holy households (A.S.). It has also been famous since the time of the last prophet (P.U.H.).
Even some people has considered some of the holy households as Mahdi (A.S.).