believe that the Mahdi will appear at the end of the world to bring about a perfect and just Islamic society.
In Shia Islam "the Mahdi symbol has developed into a powerful and central religious idea." Twelvers believe the Mahdi will be Muhammad al-Mahdi, the twelfth Imam returned from the Occultation, where he has been hidden by Allah since 874.
These duties are Shahada (profession of faith), salat (prayers), Zakāt (giving of alms), Sawm (fasting, specifically during Ramadan) and Hajj (pilgrimage to Mecca).
These five practices are essential to Sunni and Shia Muslims.
In contrast, mainstream Sunnis believe the Mahdi will be named Muhammad, be a descendant of Muhammad, and will revive the faith, but will not necessarily be connected with the end of the world.
Although he accompanied Muhammad for four years only, he managed to record ten times as many hadiths as Abu Bakr and Ali each.
Although all Muslim groups consider the Quran to be divine, Sunni and Shia have different opinions on hadith.
In recent years, Sunni–Shia relations have been increasingly marked by conflict, This can also be confusing because the majority of Arab Muslims in the United States are Shia, while the majority of Arab Americans are Christians, the conflation of Arab and Muslim being quite common. Shias are about 25-to-30 percent of the entire Muslim world.
The overwhelming majority of that population lives between Pakistan and Lebanon.
Iran always had been a Shia country, the largest one, with a population of about 70 million.
Mutah is not the same as Misyar marriage or 'Arfi marriage, which has no date of expiration and is permitted by some Sunnis.