He will say: Enter into fire among the nations that have passed away before you from among jinn and men; whenever a nation shall enter, it shall curse its sister, until when they have all come up with one another into it; the last of them shall say with regard to the foremost of them: Our Lord! these led us astray therefore give them a double chastisement of the fire. He will say: Every one shall have double but you do not know.

O you who believe! Do not enter houses other than your own houses until you have asked permission and saluted their inmates; this is better for you, that you may be mindful.

O you who believe! do not enter 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 the food, then disperse-- not seeking to listen to talk; surely this gives the Prophet trouble, but he forbears from you, and Allah does not forbear 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 (for) their hearts; and it does not behove you that you should give trouble to the Messenger of Allah, nor that you should marry his wives after him ever; surely this is grievous in the sight of Allah.