The Advent of Muharram

Imam Reza (A.S.) said:

With the advent of the month of Muharram, my father Imam Kazim (A.S.) would never be seen laughing; gloom and sadness would overcome him for (the first) ten days of the month; and when the tenth day of the month would dawn, it would be a day of tragedy, grief and  weeping for him.

- Amaali Saduq, pg,111 -