People within close circle of Imam Khomeini say that he used to move towards Karbala from 7th of Muharram during his stay in exile in Iraq.
Then he used to move to Karbala and stayed there until 13th of Muharram in order to spend time at Imam Hossein (‘a) holy shrine and attend mourning ceremonies there.
Imam Khomeini has had great devotion towards infallibles from the progeny of the holy prophet of Islam
(Extracted from a series of memoirs about Imam)