Sunni Islam ( /ˈsuːni/ or /ˈsʊni/) or Sunnism (/ˈsuːnɪzəm/ or /ˈsʊnɪzəm/) is the largest branch of Islam;. Sunni Muslims are referred to in Arabic as ʾAhl ūs-Sunnah wa āl-Ǧamāʿah (Arabic: أهل السنة والجماعة, "people of the tradition and the community") or ʾAhl ūs-Sunnah (Arabic: أهل السنة) for short; in English, they are known as Sunnis or Sunnites.
Sunni Islam is referred to as the orthodox version of the religion. The word "Sunni" comes from the term Sunnah (Arabic: سنة), which refers to the sayings and actions of Muhammad that are recorded in hadiths (collections of narrations regarding Muhammad). Sunni Muslims generally consider Sahih al-Bukhari and Sahih Muslim to be entirey authentic and accurate hadiths.
Sunni is a broad term derived from Sunnah (سنة , plural سنن sunan ), which is an Arabic word that means "habit" or "usual practice". The Muslim usage of this term refers to the sayings and living habits of Muhammad. In its full form, this branch of Islam is referred to as "Ahlus-Sunnah Wa Al-Jama'ah" (literally, "People of the Tradition and the Congregation"). Anyone claiming to follow the Sunnah and can show that they have no action or belief against the Prophetic Sunnah can consider him or herself to be a Sunni Muslim. However, it should be noted that Shi'a Muslims also hold that they follow the Sunnah.