isnaashariyah
Isnaashariyah, also known as Twelver Shi'ism, is the largest branch of Shia Islam. Its adherents, the Isnaasharis, believe in twelve divinely ordained Imams who succeeded the Prophet Muhammad as his rightful successors. These Imams are considered infallible spiritual and political leaders who possess divine knowledge and authority. The lineage of the Imams begins with Ali ibn Abi Talib, Muhammad's cousin and son-in-law, and continues through his descendants.
The twelfth Imam, Muhammad al-Mahdi, is believed to be in occultation, meaning he is hidden from humanity