Imam Mahdi’s (as) STYLE OF PREACHING WILL BE SUCH THAT PEOPLE WILL ACCEPT THE FAITH IN THE DEPTHS OF THEIR HEARTS AND WILL WORSHIP ALLAH WITH THE GREATEST SINCERITY. Those who have abandoned the faith will return to the abode of approval and security.
Iqdud Durar, p. 156; Bihar al-Anwar, Vol. 53, p. 86; Vol. 52, p. 36 and 280