Because of his blessed existence...
Because of his blessed existence, God will bring back the dead earth to life and prosperity. God will give victory to His religion over all other religions, even if this be against the liking of the disbelievers. The Mahdi will disappear from the public for a while. During his occultation, a number of people will abandon religion, whereas others will remain steadfast and will suffer because of their faith.
This latter group will be asked tauntingly: “If your belief is true, when would your promised Imam rise?” But, remember that whoever perseveres under those unfavourable circumstances when enemies would falsify and harm them, their status will be like those who fought by the side of the Prophet in defending the religion of God (3). (5) Tradition Narrated by Imam ‘Ali b. Husayn (PBUH) Imam ‘Ali b.
Husayn said: The birth of our Qa’im will be hidden from the people in such a way that they will assert: “He has not been born at all!” The reason for his concealment is that when he begins his revolution he will have no one’s allegiance on his neck (4). (6) Tradition Narrated by Imam Muhammad Baqir (PBUH) Imam Muhammad b. ‘Ali Baqir told Aban b. Taghlib: I solemnly declare that the Imamate is the divine covenant that has reached us from the Prophet.
The Imams after the Prophet are twelve in a number of whom nine are the descendants of Husayn. At the End of Time, the Mahdi will also emerge from among us who will protect the religion of God (5). (7) Tradition Narrated by Imam Ja’far Sadiq (PBUH) Imam Ja’far b. Muhammad Sadiq said: Whoever acknowledges all the Imams but denies the existence of the Mahdi, is like the one who acknowledges all the prophets but denies the prophethood of Muhammad (peace be upon him).
Someone asked him: “Among whose descendants are the Mahdi?” The Imam responded: The fifth progeny of the seventh Imam [Musa Kazim] will be the Mahdi. However, he will disappear. It is not proper for you to name him (6). (8)Tradition Narrated by Imam Musa Kazim (PBUH) Yunus b. ‘Abd al-Rahman asked Imam Musa b. Ja’far: “Are you the rightful Qa’im?” He replied: Yes, I am the rightful Qa’im.
But the Qa’im who will purify the earth from the enemies of God and will fill it with justice and equity is my fifth descendant. Since he is afraid for his life, he will be in occultation for a long time. During this period of occultation, a group will turn away from religion. But some will remain steadfast in their faith.