Abu Malik Ashaja'i reported on the authority of his father that whenever a person embraced Islam, Messenger of Allah ﷺ instructed him to recilte:" O Allah, grant me pardon, have mercy upon me, direct me to the path of righteousness and provide me sustenance."

حَدَّثَنَا أَبُو كَامِلٍ الْجَحْدَرِيُّ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، - يَعْنِي ابْنَ زِيَادٍ - حَدَّثَنَا أَبُو
مَالِكٍ الأَشْجَعِيُّ عَنْ أَبِيهِ، قَالَ كَانَ رَسُولُ اللَّهِ ﷺ يُعَلِّمُ مَنْ أَسْلَمَ يَقُولُ

" اللَّهُمَّ اغْفِرْ لِي وَارْحَمْنِي وَاهْدِنِي وَارْزُقْنِي " .