High Quality Content by WIKIPEDIA articles! Islamic holy books are the texts which Muslims believe were dictated by God to various Islamic prophets throughout the history of mankind. All these books, in Muslim belief, promulgated the code and laws of Islam. Muslims believe the Qur`an, the final holy scripture, was sent because all the previous holy books had been either corrupted or lost. Nonetheless, Islam speaks of respecting all the previous scriptures in their original forms. Belief in all the revealed books is an article of faith in Islam and a Muslim must believe in all the scriptures to be a Muslim.