Abu Hurairah (May Allah be pleased with him) reported:
A man came to the Prophet ﷺ and said, "What a trouble I suffered from a scorpion which stung me last night!" He ﷺ said, "Had you said in the evening: 'A'udhu bikalimatillahit-tammati min sharri ma khalaqa (I seek the protection of Allah's Perfect Words from the evil of whatever He has created),' it would not have harmed you."

[Muslim].

وعنه قال: جاء رجل إلى النبي ﷺ، فقال: يا رسول الله ما لقيت من عقرب لدغتني البارحة! قال: "أما لو قلت حين أمسيت: أعوذ بكلمات الله التامات من شر ما خلق لم تضرك" ((رواه مسلم)).