Khaula bint Hakim Sulamiyya (radhiAllaahu 'anhu) reported:
I heard Allah's Messenger (may peace be upon him) as saying:
When anyone lands at a place, and then says:
'A'oothu bikalimaatil-laahit-taammaati min sharri maa khalaqa.
" I seek refuge in the Perfect Word of Allah from the evil of what He has created,"
nothing would harm him until he marches from that stopping place.
{Muslim}