Surah An-Nur (The Light), Verse 62

اِنَّمَا الْمُؤْمِنُوْنَ الَّذِیْنَ اٰمَنُوْا بِاللّٰهِ وَرَسُوْلِهٖ وَاِذَا كَانُوْا مَعَهٗ عَلٰۤی اَمْرٍ جَامِعٍ لَّمْ یَذْهَبُوْا حَتّٰی یَسْتَاْذِنُوْهُ اِنَّ الَّذِیْنَ یَسْتَاْذِنُوْنَكَ اُولٰٓىِٕكَ الَّذِیْنَ یُؤْمِنُوْنَ بِاللّٰهِ وَرَسُوْلِهٖ فَاِذَا اسْتَاْذَنُوْكَ لِبَعْضِ شَاْنِهِمْ فَاْذَنْ لِّمَنْ شِئْتَ مِنْهُمْ وَاسْتَغْفِرْ لَهُمُ اللّٰهَ اِنَّ اللّٰهَ غَفُوْرٌ رَّحِیْمٌ ۟

Innamal mu'minoonal lazeena aamanoo billaahi wa Rasoolihee wa izaa kaanoo ma'ahoo 'alaaa amrin jaami'il lam yazhaboo hattaa yasta'zinooh; innal lazeena yasta'zinoonaka ulaaa'ikal lazeena yu'minoona billaahi wa Rasoolih; fa izas ta'zanooka li ba'di sha'nihim fa'zal liman shi'ta minhum wastaghfir lahumul laah; innal laaha Ghafoorur Raheem

“Only those are believers, who believe in Allah and His Messenger: when they are with him on a matter requiring collective action, they do not depart until they have asked for his leave; those who ask for thy leave are those who believe in Allah and His Messenger; so when they ask for thy leave, for some business of theirs, give leave to those of them whom thou wilt, and ask Allah for their forgiveness: for Allah is Oft-Forgiving, Most Merciful.”

Quran 24:62 (Yusuf Ali Translation)