إِنَّمَا المُؤمِنونَ الَّذينَ آمَنوا بِاللَّهِ وَرَسولِهِ وَإِذا كانوا مَعَهُ عَلىٰ أَمرٍ جامِعٍ لَم يَذهَبوا حَتّىٰ يَستَأذِنوهُ ۚ إِنَّ الَّذينَ يَستَأذِنونَكَ أُولـٰئِكَ الَّذينَ يُؤمِنونَ بِاللَّهِ وَرَسولِهِ ۚ فَإِذَا استَأذَنوكَ لِبَعضِ شَأنِهِم فَأذَن لِمَن شِئتَ مِنهُم وَاستَغفِر لَهُمُ اللَّهَ ۚ إِنَّ اللَّهَ غَفورٌ رَحيمٌ

The believers are only those who believe in Allah and His Messenger and, when they are [meeting] with him for a matter of common interest, do not depart until they have asked his permission. Indeed, those who ask your permission, [O Muhammad] - those are the ones who believe in Allah and His Messenger. So when they ask your permission for something of their affairs, then give permission to whom you will among them and ask forgiveness for them of Allah. Indeed, Allah is Forgiving and Merciful.