The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness
Ṣaḥīḥ Muslim 6880
أَمَا لَوْ قُلْتَ حِينَ أَمْسَيْتَ أَعُوذُ بِكَلِمَاتِ اللَّهِ التَّامَّاتِ مِنْ شَرِّ مَا خَلَقَ لَمْ تَضُرُّكَ
amā law qulta ḥīna amsayta aʿūdhu bikalimāti-Llāh at-tāmmāti min sharri mā khalaqa lam taḍurruka
Transliteration generated from the Arabic vowel marks
The full narration
Khaula bint Hakim Sulamiyya reported:I heard Allah's Messenger (ﷺ) as saying: When any one of you stays at a place, he should say:" I seek refuge in the Perfect Word of Allah from the evil of that He created." Nothing would then do him any harm until he moves from that place. Abu Huraira reported that a person came to Allah's Messenger (ﷺ) and said:" Allah's Messenger, I was stung by a scorpion during the night. Thereupon he said: Had you recited these words in the evening:" I seek refuge in the Perfect Word of Allah from the evil of what He created," it would not have done any harm to you
Source
Ṣaḥīḥ Muslim · 6880