Ibrahim ibn Azar (, ), known as Abraham in the Hebrew bible, is recognized in Islam as a prophet and apostle  of God (Arabic: ) and patriarch of many peoples. In Muslim belief, Abraham fulfilled all the commandments and trials which God tried him with over his lifetime. As a result of his unwavering faith in God, Abraham was promised by God to be a leader to all the nations of the world. The Quran extols Abraham as a model, an exemplar, obedient and not an idolator. In this sense, Abraham has been described as representing "primordial man in universal surrender to the Divine Reality before its fragmentation into religions separated from each other by differences in form". The Islamic holy day Eid al-Adha is celebrated in memory of the bravery of Abraham, and Muslims perform the pilgrimage to pay homage at the Kaaba which they believe Abraham had set up and reformed.