"I asked 'Aishah: 'Tell me of something that the Messenger of Allah [SAW] used to say in his supplication.' She said: 'The Messenger of Allah [SAW] used to say: Allahumma, inni a'udhu bika min sharri ma 'amiltu wa min sharri ma lam a'mal ba'd (O Allah, I seek refuge with You from the evil of what I have done and from the evil of what I have not done.)'" (Using translation from Nasāʾī 5527)
أَنَّهُ قَالَ سَأَلْتُ عَائِشَةَ قُلْتُ أَخْبِرِينِي بِشَيْءٍ كَانَ رَسُولُ اللهِ ﷺ يَدْعُو بِهِ لَعَلِّي أَدْعُو اللهَ بِهِ فَيَنْفَعَنِي اللهُ بِهِ قَالَتْ كَانَ رَسُولُ اللهِ ﷺيُكْثِرُ أَنْ يَقُولَ اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ