Nasrallah studied at the Shia seminary in the Beqaa Valley town of Baalbek. The school followed the teachings of Iraqi Shi’ite scholar Mohammad Baqir al-Sadr, who founded the Dawa movement in Najaf, Iraq during the early 1960s. In 1976, at 16, Nasrallah traveled to Iraq where he was admitted into al-Sadr’s seminary in Najaf. It is said that Al-Sadr recognized Nasrallah’s qualities and Al-Sadr is quoted as saying “I scent in you the aroma of leadership; you are one of the Ansar [followers] of the Mahdi…”. Nasrallah was expelled from Iraq, along with dozens of other Lebanese students in 1978. Al-Sadr was imprisoned, tortured, and brutally murdered. Nasrallah was forced to return to Lebanon in 1979, by that time having completed the first part of his study, as Saddam Hussein was expelling many Shias including the future Iranian supreme leader, Ruhollah Khomeini, and also Abbas Musawi.
Back in Lebanon, Nasrallah studied and taught at the school of Amal’s leader Abbas al-Musawi, later being selected as Amal’s political delegate in Beqaa, and making him a member of the central political office. Around the same time, in 1980, Al-Sadr was executed by Hussein.