O you who believe, enter not the houses of the Prophet unless permission is given to you for a meal, not waiting for its cooking being finished -- but when you are invited, enter, and when you have taken food, disperse -- not seeking to listen to talk. Surely this gives the Prophet trouble, but he forbears from you, and Allah forbears not from the truth. And when you ask of them any goods, ask of them from behind a curtain. This is purer for your hearts and their hearts. And it behoves you not to give trouble to the Messenger of Allah, nor to marry his wives after him ever. Surely this is grievous in the sight of Allah.