Profession of Faith (shahada). The belief that "There is no god but God, and Muhammad is the Messenger of God" is central to Islam. This phrase, written in Arabic, is often prominently featured in architecture and a range of objects, including the Qur'an, Islam's holy book of divine revelations. One becomes a Muslim by reciting this phrase with conviction.
Prayer (salat). Muslims pray facing Mecca five times a day: at dawn, noon, mid-afternoon, sunset, and after dark. Prayer includes a recitation of the opening chapter
Alms (zakat). In accordance with Islamic law, Muslims donate a fixed portion of their income to community members in need. Many rulers and wealthy Muslims build mosques, drinking fountains, hospitals, schools, and other institutions both as a religious duty and to secure the blessings associated with charity.
Fasting during the daylight hours of Ramadan, the ninth month of the Islamic calendar, all healthy adult Muslims are required to abstain from food and drink.