Yahya related to me from Malik from Yazid ibn Khusayfa that Amribn Abdullah ibn Kab as-Salami told him that Nafi ibn Jubayr told himthat Uthman ibn Abi al-As came to the Messenger of Allah, may Allahbless him and grant him peace. Uthman said that he had a pain whichwas enough to kill him. The Messenger of Allah, may Allah bless himand grant him peace, said, "Rub it with your right hand seven timesand say, 'I take refuge with the might of Allah and His power from theevil of what I feel.' "Uthman added, "I said that, and Allahremoved what I had. I still command my family and others to say it."
USC-MSA web (English) reference: Book 50, Hadith 9
Arabic reference: Book 50, Hadith 1722