اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ
Allahumma inni a'udhu bika min sharri ma 'amiltu wa min sharri ma lam a'mal
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.
Protection from two directions: the consequences of what you did (sins committed, hurtful words spoken, bad decisions made) and the consequences of what you didn't do (prayers missed, people not helped, opportunities for good wasted). Omission can be as dangerous as commission. This du'a covers both the sins of action and the sins of inaction.
Related Du'as
اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ جَارِ السُّوءِ فِي دَارِ الْمُقَامَةِ فَإِنَّ جَارَ الْبَادِيَةِ يَتَحَوَّلُ
O Allah, I seek refuge in You from a bad neighbor in a permanent residence, for the neighbor of the desert can move away.
Sahihقُلْ أَعُوذُ بِرَبِّ الْفَلَقِ مِنْ شَرِّ مَا خَلَقَ وَمِنْ شَرِّ غَاسِقٍ إِذَا وَقَبَ وَمِنْ شَرِّ النَّفَّاثَاتِ فِي الْعُقَدِ وَمِنْ شَرِّ حَاسِدٍ إِذَا حَسَدَ
Say: I seek refuge in the Lord of daybreak, from the evil of what He has created, from the evil of darkness when it settles, from the evil of those who blow on knots, and from the evil of an envier when he envies.
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِرِضَاكَ مِنْ سَخَطِكَ وَبِمُعَافَاتِكَ مِنْ عُقُوبَتِكَ وَأَعُوذُ بِكَ مِنْكَ لَا أُحْصِي ثَنَاءً عَلَيْكَ أَنْتَ كَمَا أَثْنَيْتَ عَلَى نَفْسِكَ
O Allah, I seek refuge in Your pleasure from Your anger, in Your forgiveness from Your punishment, and I seek refuge in You from You. I cannot count Your praises. You are as You have praised Yourself.
Sahihاللَّهُمَّ احْفَظْنِي مِنْ بَيْنِ يَدَيَّ وَمِنْ خَلْفِي وَعَنْ يَمِينِي وَعَنْ شِمَالِي وَمِنْ فَوْقِي، وَأَعُوذُ بِعَظَمَتِكَ أَنْ أُغْتَالَ مِنْ تَحْتِي
O Allah, protect me from in front of me, from behind me, from my right, from my left, and from above me. And I seek refuge in Your Greatness from being swallowed up from beneath me.
Sahih