Sura al-Nūr 24:51

إِنَّمَا كَانَ قَوْلَ ٱلْمُؤْمِنِينَ إِذَا دُعُوٓا۟ إِلَى ٱللَّـهِ وَرَسُولِهِۦ لِيَحْكُمَ بَيْنَهُمْ أَن يَقُولُوا۟ سَمِعْنَا وَأَطَعْنَا وَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ

innamā kāna qawla l-muʾminīna idhā duʿū ilā allāhi wa-rasūlihi li-yaḥkuma baynahum an yaqūlū samiʿnā wa-aṭaʿnā wa-ūlāʾika humu l-mufliḥūna

The answer of the Believers, when summoned to Allah and His Messenger, in order that He may judge between them, is no other than this: they say, "We hear and we obey": it is such as these that will attain felicity.