Ishaq bin Yusuf bin Mrdas إسحاق بن يوسف بن مرداس · General Behavior (Kitab Al-Adab)

There are five qualities which a Muslim should display to his brother : return of salutation, response to the one who sneezes, acceptance of the invitation, paying sick visit to a patient, and accompanying the funeral.

A mouse came dragging a wick and dropped before the Messenger of Allah(ﷺ) on the mat on which he was sitting with the result that it burned a hole in it about the size of dirham. He (the prophet) said: When you go to sleep, extinguish your lamps, for the devil guides a creature like this to do thus and sets you on fire.