"We verily sent Moses with Our revelations, saying: Bring thy people forth from darkness unto light. And remind them of the days of Allah. Lo! Therein are revelations for each steadfast, thankful (heart)." Qur’an (14:5)
Minor Resurrection - The promised day of the Mahdi's reappearance
"Wait they for naught else than that Allah should come unto them in the shadows of the clouds with the angels? Then the case would be already judged. All cases go back to Allah (for judgment)." Qur’an (2:210)
Both the Qur’an and the authenticated Sunnah of the Prophet speak about this monumental day of Allah. The Qur’an cites: "And verily We have written in the Psalms, after the Torah: My righteous servants will inherit the Earth." Qur’an (21:105) The Prophet stated: "Even if one day remains, Allah will stretch that day until the Mahdi comes to fill the Earth with Fairness and Justice after it has been filled with Tyranny and Injustice."
In the monotheistic faith of Islam, Allah is neither bound by space nor by time. In the chapter of sincerity, Allah introduces Himself as As-Samad, i.e. the Master Creator on Whom all other creatures depend, the Being that has no inner space (to have an outer shape),… etc. among other significant attributes. Space wise, Allah encompasses everything in the whole wide (and expanding) universe. Yet, nothing looks like Him.
Just ponder who will be coming then "in the shadows of the clouds with the angles?"
Time is absolutely irrelevant to the Creator. He is beyond it. He is not bound with it, the same way He is NOT bound with anything else - including the clouds. If He ascribes any specific days to His name, it is only to signify the importance of those days. This is an extra reminder for the human being - who tends to forget. The same can be stated about those who are affiliated with Him. The affiliates are the elites, whom He chose.
Their rank in the sight of Allah is even above than that of the closest Arch Angel - Gabriel. With Muhammad at the focus, thanks to what he has experienced on the night of the Israa and Mi'raj, Allah has introduced these elites to one another even before their births. Similarly, He foretold the physical coming of a number of his envoys. Such assertion can be proven from the glad tidings the four angels gave the barren, old Sara.
This coincidently occurred upon communicating the bad news of destructing the Sodom and Gomorrah of those who had committed the indescribable crime. Consequently, the 90-year old Abraham got his second son Isaac - who subsequently fathered Israel (Jacob), as the Qur’an narrates.
At the dawn of history, some 12,000 years ago, Allah created Adam from dirt. Later, He made Noah a great Prophet. At other points in time, He made Abraham as a close friend, spoke to Moses, and miraculously created Jesus form Virgin Mary. Eventually, He chose the Prophet Muhammad to be His beloved one, and the seal of the Prophets. Throughout history, human beings had no say in the selection of any of the very many prophets. As the Qur’an states:
"Lo! Allah preferred Adam and Noah and the Family of Abraham and the Family of \'Imran above (all His) creatures." Qur’an (3:33)
"And when a token cometh unto them, they say: We will not believe till we are given that which Allah\'s messengers are given. Allah knoweth best with whom to place His message. Humiliation from Allah and heavy punishment will smite the guilty for their scheming." Qur’an (6:124)
The Muslims agree that every Messenger is a prophet, but not vice versa. Among the Messengers of Allah, five were with Universal missions: Noah, Abraham, Moses, Jesus and Muhammad. To Muhammad's contemporaries, who denied his Messengership, the Qur’an challenges:
"They who disbelieve say: Thou art no messenger (of Allah). Say: Allah, and whosoever hath knowledge of the Scripture, is sufficient witness between me and you." Qur’an (13:43)
Who other than Imam Ali that had the knowledge of the Book, i.e. the Qur’an. If the Qur’an was a silent book, Imam Ali was the talking one. When Allah gives such recognition to Imam Ali's testimony for the Prophet's Messenger ship, little consideration should be given to those who institutionalized his dismissal as the immediate Vicegerent for the Prophet?
In very many Hadiths, the Prophet identified his Twelve vicegerents - all are from Quraysh. In his life, not only he assigned Imam Ali, but also he spoke about the Imamate of Al-Hassan and Al-Hussein, and the nine Imams from the latter's progeny. None but Imam Muhammad bin Al-Hassan Al-Askari, commonly known as the Mahdi is the awaited Saviour about whom all prophets spoke. Birth: mid Sha'ban 255 A.H., Samaraa, Iraq.
source : tebyan