Musnad Ahmad 1153:2186

Hajjaj narrated to us, he said: Shareek informed us, from Abu Ishaq, from Farwah ibn Nawfal, he said: I said to Aisha, "Inform me of some of the supplication of the Prophet, may Allah bless him and grant him peace." She said: He used to say: "O Allah, I seek refuge in You from the evil of what I have done and from the evil of what I have not done."