All the movements of a Muslim accompanied with the saying ?bismillah? are protected from the trickery of Satan as the tradition says:
?أغلق بابك وذكر اسم الله عز وجل فإن الشيطان لا بفتح بابا مغلقا وأطفئ مصباحك واذكر اسم الله وخمر إناءك ولو بعود تغرضة علبه واذكر اسم الله وأوك سقاءك واذكر اسم الله عز وجل ?
?Shut/lock your door and mention the name of Allah Most Almighty and Majestic upon it for the Satan does not open a locked (or closed) door, and put out your lamps and mention the name of Allah, and cover your utensils even with a stick and mention the name of Allah, and close your containers and mention the name of Allah Most Almighty and Majestic upon it.? [Reported by Bukhari, Muslim, Ahmad, Abu Da`ood, and Timidthi]
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