"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 yet.)'"
كَانَ رَسُولُ اللَّهِ ﷺ يَقُولُ اللَّهُمَّ إِنِّي أَ عُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ