“Islam is that you testify that there is no god except Allah and that Muhammad is the Messenger of Allah, and you establish the prayer, pay the zakat, fast Ramadan, and perform pilgrimage to the House if you are able to make your way there. … Iman is that you believe in Allah, His angels, His books, His messengers, the Last Day, and that you believe in divine decree, its good and its bad. … Ihsan is that you worship Allah as though you see Him, and though you do not see Him, He truly sees you.”
Context: The angel Jibril came to the Prophet ﷺ in human form and questioned him about the religion. This narration is often called the summary of Islam.
Source: Sahih Muslim.
