From Najul Balaga: The lord of believers (saas) said: ... HE [HAZRAT MAHDI (AS)] WILL LEAD THE CAPTIVE TO FREEDOM, FREE THE SLAVE, DISPERSE A MISLED NATION and will follow the example of the most virtuous IN ORDER TO UNIFY THE FOLLOWERS OF TRUTH.
(Kitab al-Ghayba, [Bihar al-Anwar, Vol. 51], Ansariyan Publications, Collected by: Muhammed Bakir al-Meclisi, Iran-Qum, 2003, p. 186)
In his own time, Hazrat Mahdi (as) WILL LEAD TO FREEDOM ALL HIS MUSLIM BROTHERS MADE CAPTIVE IN VARIOUS ISLAMIC COUNTRIES THAT HAVE BEEN OCCUPIED. MOREOVER, HE WILL NEUTRALIZE ALL THE DEVILISH TEACHINGS SET UP BY ATHEIST ZIONISTS AND FREEMASONS. By Allah’s leave, Hazrat Mahdi (as) will unify all those who turn to Allah and are on His straight path, and will bring about an environment of peace and security among people.