Shia call him their 12th Imam (who disappeared as a young boy at the age of 5 and went into state of occultation) nd will appear at the time when his world will be full of oppression. According to Sunnis source he is going to appear from Kaaba, but what shia authentic tradition says where their 12th imam will appear from?
FROM WORLD WAR I TO THE TIME OF THE MAHDI
Among the general signs of the Mahdi, there are also specific events that lead up to his appearance.
Here is an esoteric narration, which demonstrates this:
Narrated by Abu Hurayrah:
"The war of the end of time is the war of the world. There will be a third war after two great wars in which many are killed. He who will light the fires of the first/second world war will be known as the 'Great Leader' and then the world speaks the name (Hitler). 1300 years after the Hijra, count a few decades. At that time, the Greek King wants to wage a war against the entire world. Meanwhile, Allah commands the war for that man. A short while later, that is, in two decades, a man whose name is associated with a cat name from the (German) lands, appears as a scourge on the Romans. He starts to bother people and wants to hold control over the world. He wages war against the entire world, both the warm and cold lands. After years filled with severe war fires, he meets Allah's punishment. Then, he is killed as the Russians' mystery. Count five or six or seven or eight decades after 1300 of Hijra. At that time, a man called "Nasser" rules Egypt. Arabs call him "succa-ul Arab" (the "brave of the Arabs"). Allah disgraces him twice, once in a war, and then in another one, in which that "Nasser" can never attain victory. Then Allah grants victory to Egypt in the most beloved month of Allah. Upon this, Allah, the Lord of the House, makes a dark-colored person, whose father is more enlightened than himself, the leader of the Egyptian people and the Arab nation. But, he makes an agreement with the thieves of the Masjid al-Aqsa in the land of sadness. Then a cruel man appears in Iraq, which is located in the Damascus region. This man, with a slight injury in his eye, is a Sufyani. His name comes from confrontation (Saddam), and he is confrontational against his opponents. All the world gathers for him in small Kut, the region to which he came previously because he was deceived. There is no good in that Sufyani except with Islam and he is both good and bad.....and woe to he who betrays the trustworthy Mahdi. Count two or three decades after the year/decade of Hijri 1400. At that time, the Mahdi emerges. He fights the whole world and both the ones who have gone astray (Christians) and the ones who have earned Allah's anger (Jews) join against him with the hypocrites in the land of Isra and Miraj at Mount Megiddo. And there comes out against him the Queen of the world and deception, an adulteress called (America), who incites the world to deviation and infidelity...and the Jews of the world at that time would have the upper hand, ruling Quds and the holy city. And all the nations come to fight by sea and air except those in the land of extreme cold and the land of extreme heat. And the Mahdi sees that all the world does plot against him, but he also sees that Allah's plan is stronger than all, and he sees that the World belongs to Allah and to Him it will return, and that the World is but a tree that Allah wills him to rule from its roots to its branches.......and Allah throws down on them (unbelievers) with a disastrous punishment, burning their lands and seas and skies. And the sky rains down a harmful shower, with the people of the Earth cursing the infidels, and Allah wills the defeat of the unbelievers."
(Asma al-Masalik Li'ayyam al-Mahdi al-Malik Li-Kul al-Dunya Bi-Amr Allah al-Malik ("The Best ways to know the time of the Mahdi, King of the World, by Allah's command"), Qalda bin Zayd, p. 216)
The source mentioned for this narration, is said to be a rare hand-written book (manuscript), dated around 300 years after the Hijra and is found today, in Istanbul, Turkey in "Kitab Khane" (which is possibly the Süleymaniye Library), under the section listed as "Islamic manuscripts 3664/ Al Medina Al Munawara". This book contains an amazing collection of narrations, compiled by its author, Qalda son of Zayd son of Baraka, in MEDINA.
Any truth in this and we could be looking at looking several years before Imam Mahdi (a.s) to emerge, I tell you why the scenario begins like what has been revealed in some hadith regarding the rise of personalities such as Sufyani, Yamani,Khorasani,Shuaib ibn Salih and Al Mansoor the vanguard of Imam Mahdi so relatively we are to see these events that link up with certain other foretold signs that align up with rational understanding and observation of the complex scenario that is playing out.
America and the Vatican (Pope Francis)will sign into a cashless currency under the elated one world order this September in America bringing collateral order of their failing US$ as a global currency, making it more clear as to how America will bring Muslim countries such as Jordan, Saudi Arabia and some Middle Eastern countries into a global world order, this forms the foundation of an aliance between all respective countries aligned with this concept as America's failed currency has no where to turn accept by bringing an order that will control the global currency.
The Sufyani is also the work of this global foundation who will also assist this very order in the Muslim world to establish their extreme order of a Caliphate in counter to what is available at the moment within Syria and Iraq who will lay to waste these two countries people and infrastructure.
The Yamani will rise against the current Wahabi Salafi base in Saudia putting them in a position to actualise revolt within Saudia.
In the mean time Khorasani, Shuaib and Al Mansoor will bring about a unique Islamic World Order that will be the precept and ethos of Imam Mahdi into the World scene to counter the above Dajjali world order of the Pope and America. So give or take 25 more years to go until the Root bears its glorious Fruit.
Allahu Alam