they (have) asked his permission.
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.
信士只是信仰真主及其使者的人。当他们为任何要事而与使者集会的时候,他们不退席,直到他们向他请求允许。向你请示者,确是信仰真主及其使者的。当他们因私事而向你请示的时候,你可以允许你所意欲者,你当为他们向真主求饶。真主确是至赦的,确是至慈的。