اِنَّمَا كَانَ قَوْلَ الْمُؤْمِنِيْنَ اِذَا دُعُوْٓا اِلَى اللّٰهِ وَرَسُوْلِهٖ لِيَحْكُمَ بَيْنَهُمْ اَنْ يَّقُوْلُوْا سَمِعْنَا وَاَطَعْنَاۗ وَاُولٰۤىِٕكَ هُمُ الْمُفْلِحُوْنَ ( النور: ٥١ )
Innamaa kaana qawlal mu'mineena izaa du'ooo ilal laahi wa Rasoolihee li yahkuma bainahum ai yaqooloo sami'naa wa ata'naa; wa ulaaa'ika humul muflihoon (an-Nūr 24:51)
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. (An-Nur  : 51)
1 Mufti Taqi Usmani
The only reply of the (true) believers, when they are summoned to Allah and His messenger that he (the messenger) may judge between them, is that they say, “We listen and obey.” Such people are the successful.