The Messenger of Allah (ﷺ) used to make dua to Allah by saying this:
اَللَّهُمَّ إِنِّي أَعُوْذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ، وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ
Pronunciation
Allaahumma, inni A‛oodhu bika min sharri maa 'amiltu, wa min sharri maa lam a'mal
Meaning
I seek refuge in Thee from the evil of what I did and from the evil of what I did not.
Source: Muslim: 2716
Read the hadith
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، - وَاللَّفْظُ لِيَحْيَى - قَالاَ أَخْبَرَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ هِلاَلٍ، عَنْ فَرْوَةَ بْنِ نَوْفَلٍ الأَشْجَعِيِّ، قَالَ سَأَلْتُ عَائِشَةَ عَمَّا كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَدْعُو بِهِ اللَّهَ قَالَتْ كَانَ يَقُولُ " اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ " .
Farwa' b. Naufal Ashja'i reported: I asked: 'A'isha, in what words did Allah's Messenger (ﷺ) supplicate Allah? She said that he used to utter:" I seek refuge in Thee from the evil of what I did and from the evil of what I did not." [Muslim: 2716]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset