A man from Aslam said, "When I went to sleep last night, a scorpion stung me."The Messenger of Allah ﷺ replied, "Had you said when evening came, 'I seek refuge in the perfect words of Allah from the evil of what He has created,' it would not have harmed you."
حدثنا إسحاق أنبأنا مالك عن سهيل عن أبيه
أن رجلا من أسلم قال لما نمت هذه الليلة لدغتني عقرب فقال رسول الله ﷺ أما لو قلت حين أمسيت أعوذ بكلمات الله التامات من شر ما خلق لم يضرك
Its isnad is sahih. Muslim narrated it, 4/2018, no. 2709, in Remembrance, on seeking refuge from evil decree, and Abu Dawud narrated it, 4/13, no. 3898, in Medicine, on how to perform incantations.