i swear by your lord that they will not be considered believers until they let you judge their disputes and then they will find nothing in their souls to prevent them from accepting your judgment thus submitting themselves to the will of god.
فلا وربك لا يؤمنون حتى يحكموك فيما شجر بينهم ثم لا يجدوا في أنفسهم حرجا مما قضيت ويسلموا تسليما