Tirmidhi (3388)

Jami At Tirmidhi, Hadith No.3388

Har cheez kay zarrar say hifazat ki dua

It was narrated from Sa'd bin Abi Waqqas (ra), from Khawlah bint Hakim As-Sulamiyyah (ra), that she heard the Messenger of Allah (pbuh) say: "When one of you stops at a place, let him say: 'A’udhu bikalimatillahit-tammati min sharri ma khalaq (I seek refuge in the Perfect Words of Allah from the evil of that which He has created).' Then nothing will harm him until he moves on from there."

Sahih Muslim, Hadith No. 6879 (open the book read hadith and dua).