It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: Close the doors and mention the name of Allah at that time, because the door upon which Allah's name is mentioned, the devil cannot open it. Extinguish the lamps and mention the name of Allah over them. Tie the mouths of the water-skins by mentioning the name of Allah, and cover the vessels by reciting Bismillah, even if it is with a piece of wood.