1.Reciting the two-fold Creed (Shahada) (profession of faith) - 'There is no God but Allah' and 'Muhammad is his prophet' (or 'Muhammad is the Messenger of God')
2. Prayer (salat) - At five set-times a day while facing towards the city of Mecca.
3. Alms-giving (sakat) (zakat - means 'purification', an act of worship) -obligatory and voluntary giving to the poor.
4. Fasting (saum) - Especially during the 'holy' month of Ramadan.
5. Pilgrimage (hajj) - At least once in a lifetime - to Mecca, Saudi Arabia if at all possible, known as The Hajj.
And one most important: