Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) narrates that the Messenger of Allah (peace and blessings be upon him) said: “Recite « بسم اللہ » and close your door, for the devil does not open a closed door. Recite « بسم اللہ » and extinguish your lamp. Recite « بسم اللہ » and tie up your waterskin. And recite « بسم اللہ » and cover your vessel, even if you only place a stick across it.”