Nizari

Nizari Isma'ilis (Arabic: النزارية, romanized: al-Nizāriyya) are the largest segment of the Ismailis, who are the second largest branch of Shia Islam after the Twelvers. Nizari teachings emphasise pluralism, social justice and ijtihad (a term referring to the practise of independent reasoning by experts in Islamic law) – though they reject usul (the traditional methodological principles used in Islamic jurisprudence). Nizaris, along with Twelvers, adhere to the Jaʽfari school of jurisprudence. The Aga Khan, currently Aga Khan V, is the spiritual leader and Imam of most modern Nizaris. The global seat of the Ismaili Imamate is in Lisbon, Portugal.