Answer:
Monotheism (Tawhid ): The main message of Islam is monotheism. Belief in monotheism is the cornerstone of the Islamic faith. Muslims believe that all the Prophets sent by God to humanity shared the same central message, and that was the message of monotheism.
The Qur'an is the sacred scripture of Islam, and is believed by Muslims to be God's final revelation to humankind. The Qur'an was revealed in Arabic to Muhammad by the Angel Gabriel over a period of 22 years, beginning in 610 CE and ending in 632 CE.
Thus the basic articles of Islamic faith are: (a) belief in the oneness of Allah, (b) belief in the prophets and in the guidance that they bequeathed, (c) belief in the angels, (d) belief in the books, (e) belief in the Day of Judgment, and (f) belief in fate. Whoever professes these beliefs is a Muslim.
Sorry run out of ideas
