اَللّٰهُمَّ اجْعَلْنِيْ مِنَ الَّذِيْنَ إِذَا أَحْسَنُوْا اسْتَبْشَرُوْا، وَإِذَا أَسَاءُوْا اسْتَغْفَرُوْا ـ
Allaahummaj-‘alnii minal-ladhiina idhaa ahsanus-tabsharuu, wa idhaa asaa’us-taghfaruu. [‘A’ishah. Sunan Ibn Majah #3810]
O Allah, make me among those who, when they commit an act of virtue, rejoice, and when they commit a mistake, seek forgiveness.
Some scholars have commented: The best sin is the one followed by repentance, and the worst act of obedience is the one followed by pride (Fayd al-Qadir).
(Source: Khalid Baig’s transliteration, translation and commentary of du’aa #136 from the Accepted Whispers: Munajat-e-Maqbul)