Hazrat Mahdi (as) will have two occultations

It is related from Abu Abdullah Hussain ibn Ali that he said: The lord of this rising [Hazrat Mahdi (as)] will have two occultation. ONE OCCULTATION (PERIOD OF IMPRISONMENT) WILL BE SO LONG that they will say, “He is dead.” Some will say, “He has been killed.” Others will say, “He has gone...” Neither those who love him nor the others will know where he is. Only his close servant will know his location. (Al-Barzanji, Al-Isha'ah li-ashrat al-sa'ah, p. 93, Egyptian edition)