Islamic
Islam is an Abrahamic monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of the God of Abraham as it was revealed to Muhammad, the main and final Islamic prophet. It is the world's second-largest religion behind Christianity, with its followers ranging between 1-1.8 billion globally, or around a quarter of the world's population. Islam teaches that God is merciful, all-powerful, and unique, and has guided humanity through various prophets, revealed scriptures, and natural signs, with the Quran serving as the final and universal revelation and Muhammad serving as the "Seal of the Prophets". The teachings and practices of Muhammad documented in traditional collected accounts provide a secondary constitutional model for Muslims to follow after the Quran.