The author of «Yanabi-ul-Muwadda» narrates (on page 492) from «Manaqib» of Khawrazmi that Abu Abdullah Hussein-ibn-Ali said:- 'Once when I visited my grandfather, the Holy Prophet (S.A.W.A.) he made me sit on his lap and then said: Allah shall select from your rear, nine Imams (leaders) the ninth of whom shall be the 'Qa'em'. All of them are the same in rank and position before Allah.'
In the same book, the author narrates (on page 493) from the afore-said book of Khawrazmi who narrates from Ali (A.S.) that the Holy Prophet (S.A.W.A.) said: 'Imams after me are twelve in number. The first is you ('O Ali) and the last of them shall be the 'Qaem' through whom Allah shall liberate the East and West.