Islam and Sikhism Moses, Jesus and Mohammed in other religions. Islam believes that before Muhammad there were many messengers of God, Muhammad was the last messenger, and Quran was the last revelation to the last prophet. The Five Pillars of Islam are duties incumbent on every Muslim. These duties are Shahada (testimony that "There is no god but God and Muhammad is the messenger of God"), Salat (prayers), Zakat (Giving of Alms), Sawm (Fasting during Ramadan) and Hajj (pilgrimage to Mecca). These five practices are essential to Sunni Islam; Shi'a Muslims subscribe to eight ritual practices which substantially overlap with the five Pillars.
Identity of the first male Muslim making the similar claim of being the first Muslim in relation to Zayd ibn Harithah or Abu Bakr. Some historians and scholars believe Ali's conversion is not worthy enough to consider him the first male Muslim because he was a child at the time. One account in Tabari says that the first male convert is Zayd ibn Harithah, a freed slave who had become Muhammad's adopted son. It is known that Ali is the first person to convert to Islam, however some dispute this arguing he was only 12 years old at the time he embraced Islam. This conversion would