For example, there are various branches of Sunni Islam that follow particular great scholars from the past, including the strict Hanbali tradition, named after the ninth-century Iraqi scholar Ahmad ibn Hanbal, favoured by many Sunnis from Qatar and Saudi Arabia; this in turn has influenced the ultra-puritanical Salafi thought, which predominates among jihadists. Shia Islam has three main divisions, the best known of which is probably the Twelvers, who adhere to the teaching of the Twelve Imams, but even that contains divisions.
