An-Nur · 24:62

62. The believers who are true in their faith are those who believe in Allah and His Messenger, and when they are summoned to convene by the Prophet peace be upon him for a matter in relation to the affairs of the Muslims, they do not leave until they seek his permission to do so. O Messenger! Indeed, those who seek your permission before leaving, they are the ones who truly believe in Allah and His Messenger; so if they seek your permission to leave due to some important matter that concerns them, grant permission to whomsoever you wish from them and ask Allah to forgive their sins. Indeed, Allah Forgiving of the sins of whoever repents from His servants, and is merciful to them.