It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Cover the vessel, tie the mouths of the water skins, keep the doors shut and put out the lamp; for indeed Satan cannot untie a water skin, nor uncover a vessel, nor open a door."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1212