Narrated Abdullah ibn Amr ibn al-As: The Messenger of Allah ﷺ sued to teach them the following words in the case of alarm: I seek refuge in Allah's perfect words from His anger, the evil of His servants, the evil suggestions of the devils and their presence. Abdullah ibn Amr used to teach them to those of his children who had reached puberty, and he wrote them down (on some material) and hung on the child who had not reached puberty.

Narrated Abu Salih Zakwan as-Samman: A man from Aslam tribe said: I was sitting with the Messenger of Allah ﷺ. A man from among his Companions came and said: Messenger of Allah! I have been stung last night, and I could not sleep till morning. He asked: What was that? He replied: A scorpion. He said: Oh, had you said in the evening: "I take refuge in the perfect words of Allah from the evil of what He created, " nothing would have harmed you, Allah willing.

Narrated Abu Hurairah: A man who was stung by a scorpion was brought to the Prophet ﷺ. He said: Had he said the word: "I seek refuge in the perfect words of Allah from the evil of what He created, "he would not have been stung, or he said, "It would not have harmed him. "