Dr Tahir-ul-Qadri in his Urdu lecture provided a historic background about this topic quoting various Hadith. He further explains that Imam Mahdi (AS) will be born two to three hundred years before the Day of Qiyamah. Imam Mahdi (AS) will be born in Madinah and live there until he migrates to al-Quds after he conquers it. He will die at the age of 80. Dr Qadri also clarifies that one of the incident during the arrival of Imam Mahdi will be that Dajjal will claim to be a prophet and then later on claim to be god.