Khawlah bint Hakim (may Allah be pleased with her) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Whoever alights somewhere and then says: 'I seek refuge in the perfect words of Allah from the evil of what He has created,' nothing will harm him until he leaves that place."
عن خولة بنت حكيم -رضي الله عنها- مرفوعًا: «مَن نزَل مَنْزِلًا فقال: أعوذ بكلمات الله التَّامَّات من شرِّ ما خلَق، لم يَضُرَّه شيءٌ حتى يَرْحَلَ مِن مَنْزِله ذلك».
شرح الحديث :
The Prophet (may Allah's peace and blessings be upon him) teaches his nation how to seek refuge with Allah, the Almighty, to ward off anything which one may fear when he stops anywhere during a travel, a picnic, or otherwise. In such a situation, one should seek refuge with Allah's healing and protective words, which are perfect and flawless, to be guarded as long as he stays in a stopping place from all hazards and harmful creatures.