Jabir reported that the Prophet, may Allah bless him and grant him peace, said, "When a man enters his house, he should Allah mention Allah Almighty, both when he enters and he eats. If he does so, Shaytan says (i.e. to the shayatin), 'You cannot spend the night or eat.' When he enters and does not mention Allah when he enters, Shaytan says, 'You have got your lodgings for the night and your supper.'"