Muslims have six articles of faith, including belief in God, the angels, holy books, the prophets, the day of judgment and predestination. Additionally, Muslims believe that they must perform five acts of worship known as the pillars of Islam. These include a declaration of faith, daily prayer, giving of alms, fasting during Ramadan and pilgrimage to Mecca.
Belief in God embraces the concept that there is only one God and that he is unique. Muslims believe that angels are servants and messengers of God, having no will of their own. The holy books that Muslims revere include the Quran, considered God's final word, the Torah, which was given to Moses, the Zabur, or Psalms of David, and the Injeel, or teachings of Jesus. The true prophets that Muslims believe in include Adam, Noah, Abraham, Ishmael, Isaac, Jacob, Joseph, Moses, David, Elias, Elisha, Jesus and Muhammad. The day of judgment involves the dividing of the righteous and the wicked and the distribution of rewards and punishment in the afterlife. Predestination is a belief in destiny as an indication of God's will.
The declaration of faith required of every Muslim is that there is only one God and that Muhammad is his prophet. Daily prayer is performed at dawn, noon, afternoon, evening and night. For every Muslim who can afford it, almsgiving is the distribution of a minimum of 2.5 percent of a person's wealth to the poor. During the month of Ramadan, Muslims believe they must fast from sunrise to sunset. If they are able, every Muslim must journey to Mecca once in a lifetime to perform the ritual hajj pilgrimage.