What is Faith?

Sincerity and piety the essence of Islam Uthman ibn Affan tells of how the Prophet said that he knew which testimony would save one from the Fire, provided it was uttered from the depths of one’s heart. Umar offered to explain the nature of such an affirmation to the Companions. He said that it was the testimony of sincerity, which God had prescribed for the Prophet and his companions, and the testimony of piety, which the Prophet had pressed upon his uncle, Abu Talib, as the latter lay dying: it was, ultimately, the testimony that there is none worthy of being worshipped save God.