The Prophet ﷺ said, "Whoever says three times in the evening, 'I seek refuge in the perfect words of Allah from the evil of what He has created,' no venomous sting will harm him that night."He said, "Our family learned this and used to recite it. One night a young girl among them was stung, yet she felt no pain from it."
حدثنا يزيد أخبرنا هشام عن سهيل بن أبي صالح عن أبيه
قال النبي ﷺ من قال إذا أمسى ثلاث مرات أعوذ بكلمات الله التامات من شر ما خلق لم تضره حمة تلك الليلة قال فكان أهلنا قد تعلموها فكانوا يقولونها فلدغت جارية منهم فلم تجد لها وجعا
Its chain of transmission is sahih. Something similar in meaning will come at 8867, narrated by Malik from Suhayl, from his father, from Abu Hurairah, that a man from Aslam said, "When I slept last night, a scorpion stung me," and the Messenger of Allah said, "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."This is found in Muwatta, page 951, in a slightly longer form.Muslim narrated something similar in meaning at 2:314, through Qaqa bin Hakeem from Abu Salih, and also through Yaqub, from Abu Salih.Ibn Majah narrated something similar in meaning at 3518, from Sufyan, from Suhayl, from his father.Busiri said in his Zawaid bin Majah, "Its chain of transmission is sahih, its narrators are reliable." This is as he said, but classifying it among the additions of Zawaid bin Majah is questionable.Suyuti mentioned, in Ziyadat Jami Saghir, something similar to this Musnad narration, and attributed it to Tirmidhi, Ibn Hibban, and Hakim.See Fath Kabir, 3:219.Humah, with damma on the ha and without doubling the mim, its explanation was given previously at 2448, that it means poison. It is also used for the scorpion's stinger, which is what is meant here.