It is mentioned in Kashful Ghummah that the Messenger of Allah (s.a.w.a.) said: Mahdi (a.s.) will appear and a cloud would be shading him from which a caller will be calling out: This is Mahdi, the Caliph of Allah; follow him.2 It is also narrated from the Messenger of Allah (s.a.w.a.) that he said: Thus, indeed he is
the Caliph of Allah, the Mahdi,3 and this report is narrated by Ganji Shafei in his book of Bayaan
