It was narrated from ’Umar that Jibreel عليه السلام said to the Prophet ﷺ:
What is faith (eeman)? He said:“To believe in Allah, His Angels, His Books, His Messengers, the Last Day and the divine decree, both good and bad,” Jibreel said to him: You have spoken the truth. He said: We were amazed that he asked him and then confirmed his answers as being correct. The Prophet ﷺ said: “That was Jībreel, who came to teach you your religion.`