Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When a person feels pain, he should place his hand on the place of pain and recite this supplication seven times: «أعوذ بعزة الله وقدرته على كل شيء من شر ما أجد.» I seek refuge in Allah's might and His power over everything from the evil of what I feel."