Hadith 1477

'Aishah (May Allah be pleased with her) reported: The Prophet (PBUH) used to supplicate (in these words): "Allahumma inni audhu bika min sharri ma 'amiltu, wa min sharri ma lam a'mal (O Allah! I seek refuge in You from the evil of that which I have done and the evil of that which I have not done)."

[Muslim].