As part of the Islam religion,
all true Muslims must perform 5 duties,
called the Five Pillars of Faith.
These are given here in their original order:

Shahada

(affirmation)
The duty to recite the creed:
"There is nothing worthy of worship save Allah,
and Muhammad is the Messenger of God"

Salat

(prayer)
The duty to worship the One God
in prayer five times each day

Zakat

(almsgiving)
The duty to give away alms and to help the needy

Siyam

(fasting)
The duty to keep the Fast of Ramadan

Hajj

(pilgrimage)
The duty to make the pilgrimage to Mecca
at least once in a lifetime