Quran 2:2-5

This is the Book; in it is guidance sure, without doubt, to those who fear God; Who believe in the Unseen, are steadfast in prayer, and spend out of what We have provided for them; And who believe in the Revelation sent to thee, and sent before thy time, and (in their hearts) have the assurance of the Hereafter. They are on (true) guidance, from their Lord, and it is these who will prosper.