In which religion is the Qur'an the holy book?

Explanation

Islam is a world religion that originated in Arabia around year 600. The word islam means 'voluntary submission to God'. The religions followers are called Muslims, which means someone who submits himself or herself. The normative examples and teachings of the Prophet Muhammed from 610-632 are collected in the Qur'an. Friday is the holy day, where Muslims meet for the Friday Prayer. The Qur'an is the most holy book in Islam. According to legend, it was the archangel Gabriel who revealed it to Muhammed.