A dua of The Messenger of Allah (ﷺ) was like this:
اَللَّهُمَّ إِنَّا نَسْأَلُكَ مُوْجِبَاتِ رَحْمَتِكَ وَعَزَائِمَ مَغْفِرَتِكَ وَالسَّلَامَةَ مِنْ كُلِّ إِثْمٍ وَالْغَنِيْمَةَ مِنْ كُلِّ بِرٍّ وَالْفَوْزَ بِالْجَنَّةِ وَالنَّجَاةَ بِعَوْنِكَ مِنَ النَّارِ
Pronunciation
Allaahumma inna nas'aluka mu-jibaati ra’hmatika, wa 'azaa'ima maghfiratika, was-salaamata min kulli ithmin, wal-ghanimata min kulli birrin, wal-fawza bil- jannati, wan najaata bi ‘awnika minan-naar
Meaning
O Allah! I beg You for that which incites Your Mercy and the means of Your forgiveness, safety from every sin, the benefit from every good deed, success in attaining Jannah and deliverance from Fire.
Source: Hasan (Arnaut) . Al-Adhkar 1/340
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset