Sunni Islam is the largest branch of Islam, representing about 85-90% of the global Muslim population. Sunnis believe that the community should select its leaders, known as caliphs, based on consensus and merit. This belief stems from the teachings of the Prophet Muhammad and the early years of the Islamic community. Sunnis follow the Quran and the Hadith, which are records of the sayings and actions of the Prophet Muhammad. They practice the five pillars of Islam, which include faith, prayer, charity, fasting, and pilgrimage. Sunni traditions emphasize community and the importance of following the example set by the Prophet.