Its very foundation is based on the belief in Allah, angels, prophets, the Day of Judgement and the Quran, as well as other Islamic Scriptures revealed by previous prophets.
ایمان در قرآن: ایمان به خدا، فرشتگان، پیامبران، کتب آسمانی، روز آخرت و بازگشت به سوی او.