It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him and his family) said: The Hour will not be established until a man from my Ahl al-Bayt becomes the ruler; he will have my name. Imam Ahmad said: Sufyan bin 'Uyaynah narrated this hadith to us in a room of his house when a son of Ja'far bin Yahya or Yahya bin Khalid asked him about this hadith.

It is also narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: These days and this era will not end until a man from my Ahl al-Bayt, whose name will be like my name, becomes the ruler of the land of Arabia.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Even if only one day remains of the world, Allah Almighty will still send a man from among us, who will fill the earth with justice and fairness, just as it had previously been filled with oppression and tyranny.

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him and his family) said: The Day of Judgment will not be established until a man from my Ahl al-Bayt comes to power; he will be extremely handsome with a high nose, and he will fill the earth with justice and fairness just as it was previously filled with oppression and injustice. He will remain for seven years.

It is also narrated from Sayyiduna Abu Sa'id Khudri, may Allah be pleased with him, who says: We feared that after the Noble Prophet, various incidents would occur in the world, so we asked the Messenger of Allah, peace and blessings be upon him, about this, and he, peace and blessings be upon him, said: In my Ummah, a person, Mahdi, will appear for five, or seven, or nine. The narrator Zaid was in doubt, so I asked: What is meant by this number? He said: Years. Then he, peace and blessings be upon him, said: The sky will pour down torrential rains upon the people, and the earth will not withhold anything of its crops within itself, and there will be heaps of wealth and riches. A man will come to him and say: O Mahdi! Give me, give me, so he will put as much as the man is able to carry into his garment.

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: When discord will be rampant among my Ummah and earthquakes will be occurring, I give you the glad tidings of Mahdi, who will fill the earth with justice and fairness just as it was previously filled with oppression and tyranny. All those in the heavens and the earth will be pleased with him. He will distribute wealth among the people with equality, and Allah Almighty will fill the hearts of the Ummah of Muhammad with contentment. His justice and fairness will reach everyone. He will order a caller to announce:“Whoever is in need of wealth, let him come.”Upon hearing this announcement, only one man will stand up. Mahdi will say to him:“Go and tell the treasurer that Mahdi commands you to give me wealth.”The treasurer will say to him:“Take as much as you wish.”When he fills his cloak with a great amount of wealth and ties it up, he will feel remorse and say:“Among the Ummah of Muhammad (peace and blessings be upon him), I turned out to be the most impatient. Has that thing which reached all of them become insufficient for me?”So he will return that wealth, but Mahdi will not accept it from him, and it will be said to him:“Whatever we give, we do not take back.”For seven, or eight, or nine years, such prosperity will prevail, after which there will be no good in living.

Mawla of the Messenger, Sayyiduna Thawban (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him and his family) said: When you see black flags coming from the direction of Khurasan, then go towards them and join them, for among them will be Allah’s Caliph, Mahdi.

It is narrated from Sayyiduna Ali (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: The Mahdi will be from among us, the Ahl al-Bayt. Allah Almighty will rectify him in a single night.

It is narrated from Sayyida Umm Salama (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: At the time of the death of a (certain) caliph, people will fall into disagreement. At that time, a man will flee from Madinah Munawwarah and go to Makkah Mukarramah. Some people from among the people of Makkah will come to him, bring him out, and pledge allegiance to him between the Black Stone and the Station of Ibrahim, while he will dislike this. An army from Syria will march against them, but when it reaches the plain of Bayda, it will be swallowed up by the earth right there. When people see this situation, the righteous people of Syria and the armies of Iraq will come and pledge allegiance to him. Then a man from the Quraysh will rise, whose maternal uncles are from the tribe of Kalb. The man from Makkah will send a detachment against him, and they will prevail over them. This will be the army of Banu Kalb. Woe to those who are not present for the spoils of Banu Kalb. Then he will distribute wealth among the people and establish the practice of the Prophet among the people, and he will establish and strengthen the religion of Islam on the earth, and he will remain for seven years.

Ubaid bin Qabtiyah says: Harith bin Abi Rabi’ah and Abdullah bin Safwan went to Lady Umm Salamah (may Allah be pleased with her), and I was with them. They asked the Lady about the army that would be swallowed up by the earth. This was during the caliphate of Sayyiduna Ibn Zubair (may Allah be pleased with him). Lady Umm Salamah (may Allah be pleased with her) said: I heard the Messenger of Allah (peace and blessings be upon him) say: A seeker of refuge will take refuge in Hatim, so Allah Almighty will send an army against him, but when they reach Bayda’, they will be swallowed up by the earth. I said: O Messenger of Allah! What will happen to the person who is compelled to go with them? He (peace and blessings be upon him) said: He will also be swallowed up with them, but on the Day of Resurrection, he will be raised according to his intention. When I mentioned this hadith to Abu Ja’far, he said that by this is meant the Bayda’ near Madinah.