@$ Name : Mohammad(a.s.) - the 12th and the last Holy Imam Title(s) : Sahib al-Asr waz-Zamaan (Imam of the time/space), Al-Hujjat (proof of Allah), Al-Qaim (the present one), Al-Muntazar (one who is awaited), Al-Muntazir (one who waits the order of Allah), Al-Mahdi (one who guides) Agnomen : Abul Qasim Father : Imam Hasan Askari(a.s.) Mother : Bibi Nargis Khatoon(a.s.) Birth : In Samarrah on 15th Shabaan 255 AH (868 AD Occultation : The 12th Imam is still alive but is in occultation by the will of Allah(swt) Birth and Imamate The promised Mahdi, who is usually mentioned by his title of Imam-i 'Asr (the Imam of the "Period") and Sahib al-Zaman (the Lord of the Age), is the son of the eleventh Imam. His name is the same as that of the Holy Prophet. He was born in Samarrah in