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The duties that all Muslims have to follow are called...
The five pillars: Shahadah (there is only one God and Mohammed is his final prophet),Salat (pray 5 times a day facing Mecca), Zakat (give 3% or 4% of their net worth to the poor), Sawn (fast for 8 hours during the lunar month of Rammaddan), and Hajj (once in a lifetime every Muslim who is able must make a pilgrimage to the Holy City of Mecca)