Quran 4:35 An-Nisa, ayah 35 of 176

وَإِنْ خِفْتُمْ شِقَاقَ بَيْنِهِمَا فَٱبْعَثُوا۟ حَكَمًا مِّنْ أَهْلِهِۦ وَحَكَمًا مِّنْ أَهْلِهَآ إِن يُرِيدَآ إِصْلَـٰحًا يُوَفِّقِ ٱللَّهُ بَيْنَهُمَآ ۗ إِنَّ ٱللَّهَ كَانَ عَلِيمًا خَبِيرًا ۝٣٥

4:35 And if ye fear a breach between them twain (the man and wife), appoint an arbiter from his folk and an arbiter from her folk. If they desire amendment Allah will make them of one mind. Lo! Allah is ever Knower, Aware.