It is believed that Prophet Muhammad had received revelations from Allah for 23 years. At first, these revelations were preached by the prophet verbally. Later Muhammad's teachings were set down in a book called the Quran (Koran). After Muhammad's death all the teachings of Muhammad were compiled under the direction of the first Sunni Caliph Abu Bakr. The work was completed about 1,400 years ago.

Composed in 114 verses or surah(s) of varying lengths, the Quran covers a wide range of subjects. It puts a special emphasis on the concept of oneness of god and his concern about the spiritual and worldly welfare of man. The holy scripture also enlightens on the creation of the world, specially, of man; of good and evil spirits; man's responsibility for his actions; the Day of Judgement; the final account; and rewards and punishments.

The book also contains rules and regulations regarding worship and the life of the community, the laws of the family: like marriage, divorce and inheritance. Since the Quran is said to be the very word of god, it is untranslatable. Nevertheless, for those who don't understand Arabic, the Quran has been explained and translated into almost all world languages. Still, every Muslim is expected to learn the Arabic script to be able to read the original text, even if he does not understand its meaning in Arabic.

Some of the quotes from the Surah 2 are given here:
This is the Book; in it is guidance sure, without doubt, to those who fear Allah.

And your Allah is One Allah. There is no god but He, Most Gracious, Most Merciful.

It is He Who hath created for you all things that are on earth; Moreover His design comprehended the heavens, for He gave order and perfection to the seven firmaments; and of all things He hath perfect knowledge.

To Allah belong the east and the West: Whithersoever ye turn, there is the presence of Allah. For Allah is all-Pervading, all-Knowing.

Who has made the earth your couch, and the heavens your canopy; and sent down rain from the heavens; and brought forth therewith Fruits for your sustenance; then set not up rivals unto Allah when ye know (the truth).

O ye people! Adore your Guardian-Lord, who created you and those who came before you, that ye may have the chance to learn righteousness.

Who has made the earth your couch, and the heavens your canopy; and sent down rain from the heavens; and brought forth therewith Fruits for your sustenance; then set not up rivals unto Allah when ye know (the truth).

Be steadfast in prayer and regular in charity: And whatever good ye send forth for your souls before you, ye shall find it with Allah. for Allah sees Well all that ye do.

Be sure we shall test you with something of fear and hunger, some loss in goods or lives or the fruits (of your toil), but give glad tidings to those who patiently persevere.

"Our Lord! make of us Muslims, bowing to Thy (Will), and of our progeny a people Muslim, bowing to Thy (will); and show us our place for the celebration of (due) rites; and turn unto us (in Mercy); for Thou art the Oft-Returning, Most Merciful.

Fight in the cause of Allah those who fight you, but do not transgress limits; for Allah loveth not transgressors.

O ye people! Eat of what is on earth, Lawful and good; and do not follow the footsteps of the evil one, for he is to you an avowed enemy.

Cover not Truth with falsehood, nor conceal the Truth when ye know (what it is).

regards