30. Dua after Accepting Islam (Masnun Dua)
Whenever a person embraced Islam, Allah's Messenger (ﷺ) instructed him to recilte -
اَللَّهُمَّ اغْفِرْ لِي، وَارْحَمْنِي، وَاهْدِنِي، وَعَافِنِي وَارْزُقْنِي
اَللّٰهُمَّ اغْفِرِ لِيْ، وَارْحَمْنِيْ، وَاهْدِنِيْ، وَعَافِنِيْ وَارْزُقْنِيْ
Allaahummaghfir lee, warhamnee, wahdinee, wa 'aafinee warzuqnee
Translation
O Allah, forgive me, have mercy upon me, guide me and grant me sustenance.
Another narration of Muslim says, "These will combine everything in this world and the Hereafter for you."