The Quran is a book of God revealed to the Prophet Muhammad to bring glad tidings to mankind along with divine admonition and stresses the discovery of truth. It did not come to him in the form of a complete book but in parts over a period of 23 years. The first part was revealed in 610 AD when the Prophet Muhammad was in Makkah. Subsequently, different parts continued to be revealed regularly, the final part being revealed in 632 AD when the Prophet was in Madinah. There are 114 chapters in the Quran, both long and short. The verses number about 6600. To meet the needs of recitation, the Quran was divided into 30 parts. These parts were finally set in order under the guidance of the Angel Gabriel, through whom God had revealed the Quran. The Quran was thus revealed and preserved for all eternity. The personality and life of the Prophet of Islam are historically established, and his teachings are preserved in the form of the Hadith and Sunnah, the sayings and actions of the Prophet Muhammad. In this way, the Quran and Hadith, the two authentic sources of Islam, are preserved. One who wants to know the real picture of Islam can refer to these two sources and discover the true version of Islam.