The principles of faith and Islam are clearly expressed in the famous hadith of Gabriel .
Hz. Omar (ra) tells: We were sitting with the Messenger of Allah (pbuh). Then, a person with pure white clothes and jet black hair appeared. But there were no traces of travel on him, yet none of us recognized him. Finally came and Hz. He sat next to the Prophet (pbuh), leaned his knee on his, put his hands on his knees and
“Oh Muhammad! Can you tell me about Islam?” He said: Thereupon Hz. Prophet (PBUH):
“Islam; “To believe that there is no god but Allah and that Muhammad is the Messenger of Allah, to perform prayers, to pay alms, to fast, to go on pilgrimage when you can.” he replied. Questioner:
“You said true.” said. His situation surprised us; he both asks a question and confirms the accuracy of the answer given. Then:
“Can you tell me about faith?” said. Hz. Prophet (PBUH):“Faith; It means believing in Allah, His angels, His books, His messengers, the Day of Judgment, destiny: good and evil.” he commanded. Questioner:
“You said true.” said. This time:
“Can you tell me about goodness?” said. Hz. Prophet (PBUH):“Ihsan; It means worshiping Allah as if you see Him. Because even though you don’t see him, he definitely sees you.” he replied. Later;
“Can you tell me about the apocalypse?” When he said, Hz. Prophet (PBUH):
“The one to whom the question is asked does not know better than the one who asks the question.” said…
After the person asking the question got up and left, Hz. The Prophet (pbuh) said that his Hz. He said that he was Gabriel (as) and that he did this to teach Muslims about their religion. (see Muslim, Iman, 1) .
This hadith has been a guide for the Ahl al-Sunnah and the community, and it has been accepted that there are basically six pillars of faith and five pillars of Islam .