Answer:
For Muslims the Qur'an is the most important source of authority as it is believed to be the revealed word of God. Muslims believe it is the most sacred text and contains ultimate guidance for all humankind.They should be faithful to their god. They are required to pray everyday.
Explanation: The Five Pillars are the core beliefs and practices of Islam:
Profession of Faith (shahada). The belief that "There is no god but God, and Muhammad is the Messenger of God" is central to Islam. ...
Prayer (salat). ...
Alms (zakat). ...
Fasting (sawm). ...
Pilgrimage (hajj).