Surah An-Nisa' (The Women), Verse 65

فَلَا وَرَبِّكَ لَا یُؤْمِنُوْنَ حَتّٰی یُحَكِّمُوْكَ فِیْمَا شَجَرَ بَیْنَهُمْ ثُمَّ لَا یَجِدُوْا فِیْۤ اَنْفُسِهِمْ حَرَجًا مِّمَّا قَضَیْتَ وَیُسَلِّمُوْا تَسْلِیْمًا ۟

Falaa wa Rabbika laa yu'minoona hattaa yuhakkimooka fee maa shajara bainahum summa laa yajidoo feee anfusihim harajam mimmaa qadaita wa yusal limoo tasleemaa

“But no, by thy Lord, they can have no (real) Faith, until they make thee judge in all disputes between them, and find in their souls no resistance against Thy decisions, but accept them with the fullest conviction.”

Quran 4:65 (Yusuf Ali Translation)