Sahih Muslim
The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness (Kitab Al-Dhikr)
Book Number: 035 / Hadith Number: 6541
Khaula bint Hakim Sulamiyya reported: I heard Allah's Messenger (may peace be upon him) as saying: When anyone lands at a place, and then says:" 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.