Muslims consider the Qur'an, the holy book of Islam, as the word of God and a miracle.. The Qur'an claims that it has been created miraculously as a revelation from Allah (God), as a perfect copy of what was written in heaven and existed there from all eternity. Therefore the verses of the book are referred to as ayat, which also means "a miracle" in the Arabic language. It is believed that the Qur'an as we know it today, is the same as was revealed to Muhammad in the year 610. The Qur'an itself gives an open challenge for anyone who denies its claimed divine origin to produce a text like it. [Qur'an 17:88][11:12–13][2:23]