Volume 6, Book 60, Number 312:
Narrated Muadha:
‘Aisha said, “Allah’s Apostle used to take the permission of that wife with whom he was supposed
to stay overnight if he wanted to go to one other than her, after this Verse was revealed:–
“You (O Muhammad) can postpone (the turn of) whom you will of them (your wives) and you
may receive any (of them) whom you will; and there is no blame on you if you invite one whose turn
you have set aside (temporarily). (33.51) I asked Aisha, “What did you use to say (in this case)?” She
said, “I used to say to him, “If I could deny you the permission (to go to your other wives) I would not
allow your favor to be bestowed on any other person.”