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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:19925 – ʿAlī > Muʿādh from my father > ʿAwn / al-ʿAqīlī > Muṭarrifʿan ʿImrān b. Ḥuṣayn

[Machine] General translation: The common supplication of the Prophet ﷺ was, "O Allah, forgive me for what I have done wrong unintentionally or intentionally, secretly or openly, knowingly or unknowingly."

Please note that the translation may vary depending on the context and interpretation.  

أحمد:١٩٩٢٥ – حَدَّثَنَا عَلِيٌّ حَدَّثَنَا مُعَاذٌ حَدَّثَنِي أَبِي عَنْ عَوْنٍ وَهُوَ الْعَقِيلِيُّ عَنْ مُطَرِّفٍعَنْ عِمْرَانَ بْنِ حُصَيْنٍ قَالَ

كَانَ عَامَّةُ دُعَاءِ نَبِيِّ اللهِ ﷺ اللهُمَّ اغْفِرْ لِي مَا أَخْطَأْتُ وَمَا تَعَمَّدْتُ وَمَا أَسْرَرْتُ وَمَا أَعْلَنْتُ وَمَا جَهِلْتُ وَمَا تَعَمَّدْتُ  

See similar narrations below:

Collected by Ṭabarānī, Suyūṭī

عَوْنُ بْنُ عَبْدِ اللهِ الْعُقَيْلِيُّ، عَنْ مُطَرِّفٍ

tabarani:15393 – [Chain 1] al-ʿAbbās b. al-Faḍl al-Asfāṭī > ʿAlī b. al-Madīnī [Chain 2] ʿAbdān b. Aḥmad > Khalīfah b. Khayyāṭ > Muʿādh b. Hishām from my father > ʿAwn al-ʿUqaylī > Muṭarrif > ʿImrān b. Ḥuṣayn

[Machine] From the supplication of the Messenger of Allah, ﷺ : "O Allah, forgive me for what I have done wrong knowingly or unknowingly, in secret or in public, and what I have done out of ignorance."  

الطبراني:١٥٣٩٣ – حَدَّثَنَا الْعَبَّاسُ بْنُ الْفَضْلِ الْأَسْفَاطِيُّ ثنا عَلِيُّ بْنُ الْمَدِينِيِّ ح وَحَدَّثَنَا عَبْدَانُ بْنُ أَحْمَدَ ثنا خَلِيفَةُ بْنُ خَيَّاطٍ قَالَا ثنا مُعَاذُ بْنُ هِشَامٍ حَدَّثَنِي أَبِي عَنْ عَوْنٍ الْعُقَيْلِيِّ عَنْ مُطَرِّفٍ عَنْ عِمْرَانَ بْنِ حُصَيْنٍ قَالَ

كَانَ مِنْ دُعَاءِ رَسُولِ اللهِ ﷺ «اللهُمَّ اغْفِرْ لِي مَا أَخْطَأْتُ وَمَا عَمَدْتُ وَمَا أَسْرَرْتُ وَمَا أَعْلَنْتُ وَمَا جَهِلْتُ»