4:65
فَلَا وَرَبِّكَ لَا يُؤۡمِنُوۡنَ حَتّٰي يُحَكِّمُوۡكَ فِيۡمَا شَجَرَ بَيۡنَهُمۡ ثُمَّ لَا يَجِدُوۡا فِيۡ٘ اَنۡفُسِهِمۡ حَرَجًا مِّمَّا قَضَيۡتَ وَيُسَلِّمُوۡا تَسۡلِيۡمًا
But no, by your Lord, they will not [truly] believe until they make you, [O Muhammad], judge concerning that over which they dispute among themselves and then find within themselves no discomfort from what you have judged and submit in [full, willing] submission