Surah An-Nur
إِنَّمَا كَانَ قَوْلَ ٱلْمُؤْمِنِينَ إِذَا دُعُوٓا۟ إِلَى ٱللَّهِ وَرَسُولِهِۦ لِيَحْكُمَ بَيْنَهُمْ أَن يَقُولُوا۟ سَمِعْنَا وَأَطَعْنَا ۚ وَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
Innamā kāna qaulal-mu'minīna iżā du‘ū ilallāhi wa rasūlihī liyaḥkuma bainahum ay yaqūlū sami‘nā wa aṭa‘nā, wa ulā'ika humul-mufliḥūn(a).
The only statement of the [true] believers when they are called to Allah and His Messenger to judge between them is that they say, "We hear and we obey." And those are the successful.
📝 Footnotes
522) This means either among the Muslims themselves, or between the Muslims and non-Muslims.