The Messenger of Allah ﷺ said, "No servant will truly believe until he believes in four things. He must believe in Allah, that Allah sent me with the truth, in the resurrection after death, and in divine decree, both its good and its bad."
حدثنا وكيع حدثنا سفيان عن منصور عن ربعي بن حراش عن رجل
قال رسول الله ﷺ لن يؤمن عبد حتى يؤمن بأربع يؤمن بالله وأن الله بعثني بالحق ويؤمن بالبعث بعد الموت ويؤمن بالقدر خيره وشره