And verily, We made the Quran easy for remembering, is there then any one to remember?[54:32]
It is narrated on the authority of ('Abdullah) son of Umar (may Allah be pleased with them) that the Holy Prophet (may peace of Allah be upon him) said: (The superstructure of) al-Islam is raised on five (pillars), i. e. the oneness of Allah, the establishment of prayer, payment of Zakat, the, fast of Ramadan, Pilgrimage (to Mecca).