When do you think Imam Mahdi will come? do you think is already on the face of this earth

salaam

Answer: source islamqa
Praise be to Allaah.

There are saheeh ahaadeeth that indicate that the Mahdi (peace be upon him) will appear at the end of time. He is one of the signs of the Hour. Among these ahaadeeth are the following:

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. (Mustadrak al-Haakim, 4/557-558; he said: this is a hadeeth whose isnaad is saheeh, although it was not reported by al-Bukhaari and Muslim. Al-Dhahabi agreed with him, and al-Albaani said: this is a saheeh sanad, and its men are thiqaat (trustworthy), Silsilat al-ahaadeeth al-saheehah, vol. 2, p. 336, hadeeth 771)

2. ‘Ali (may Allaah be pleased with him) said: "The Messenger of Allaah (Peace & Blessings of Allaah be upon Him) said: ‘The Mahdi is one of us, a member of my family. Allaah will guide him in a single night.’" (Musnad Ahmad, 2/58, hadeeth 645, edited by Ahmad al-Shaakir, who said: its isnaad is saheeh; Sunan Ibn Maajah, 2/1367. This hadeeth was also classed as saheeh by al-Albaani in Saheeh al-Jaami’ al-Sagheer, 6735). Ibn Katheer said: "This means that Allaah will forgive him, grant him help, inspire him and guide him, when he was not like this before." (Al-Nihaayah, al-Fitan wa’l-Malaahim, 1/29; edited by Taha Zayni).

3. 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.’" (Sunan Abi Dawud, Kitaab al-Mahdi, 11/375, hadeeth 4265; Mustadrak al-Haakim, 4/557; he said: this is a saheeh hadeeth according to the conditions of Muslim, although it was not reported by al-Bukhaari and Muslim. See also Saheeh al-Jaami, 6736).

4. Umm Salamah said: "I heard the Messenger of Allaah (Peace & Blessings of Allaah be upon Him) say: ‘The Mahdi is of my lineage and family, from the descendants of Faatimah.’" (Sunan Abu Dawud, 11/373; Sunan Ibn Maajah. 2/1368. Al-Albaani said that it is saheeh in Saheeh al-Jaami, 6734)

thats all i can find about him.

You can listen to Sheikh Yasir Qadhi's lecture in which he talks about Imam Mahdi in detail.

http://www.islamicboard.com/islamic-...di+Yasir+Qadhi (The Mahdi - Between Fact & Fiction by Yasir Qadhi.)