[In the time of Hazrat Mahdi (as)] HEARTS WILL BE FREE OF GRIEF AND SORROW.

(Bihar al-Anwar, vol. 52, p. 129; vol. 102, p.102; Mikyaal al-Makaarem, vol. 1, p. 116 & 142; Misbaah al-Zaaer, p. 217-219.)