Hadith: 1) Abu Sa’eed al-Khudri reported that the Messenger of Allaah (Peace & Blessings of Allaah be upon Him) said: "At the end of the time of my ummah, the Mahdi will appear. Allaah will grant him rain, the earth will bring forth its fruits, he will give a lot of money, cattle will increase and the ummah will become great. He will rule for seven or eight years.
2) Abu Sa’eed al-Khudri said: "The Messenger of Allaah (Peace & Blessings of Allaah be upon Him) said: ‘The Mahdi is of my lineage, with a high forehead and a long, thin, curved nose. He will fill the earth with fairness and justice as it was filled with oppression and injustice, and he will rule for seven years.
3) Jaabir (may Allaah be pleased with him) said: "The Messenger of Allaah (Peace & Blessings of Allaah be upon Him) said: ‘‘Eesaa ibn Maryam will descend, and their leader the Mahdi will say, "Come and lead us in prayer," but he will say, "No, one of them should lead them as an honour to this ummah from Allaah."’" The version narrated by Muslim says: "… Then ‘Eesaa ibn Maryam (Peace be upon him) will descend and their leader will say, ‘Come and lead us in prayer,’ but he will say, ‘No, some of you are leaders over others as an honor from Allaah to this ummah.’"