Sunan Ibn Majah, Volume 5, Book 34, Hadith 3839 (DarusSalam) ⓘ

It was narrated that Farwah bin Nawfal said: "I asked 'Aishah about a supplication that the Messenger of Allah (saas) used to say. She said that he used to say: 'Allahumma inni a'udhu bika min sharri ma 'amiltu, wa min sharri ma lam a'mal (O Allah, I seek refuge with You from the evil of that which I have done and the evil of that which I have not done).'"

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، عَنْ حُصَيْنٍ، عَنْ هِلاَلٍ، عَنْ فَرْوَةَ بْنِ نَوْفَلٍ، قَالَ سَأَلْتُ عَائِشَةَ عَنْ دُعَاءٍ، كَانَ يَدْعُو بِهِ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ فَقَالَتْ كَانَ يَقُولُ ‏ "‏ اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ ‏" ‏ ‏.‏