رَبَّنَا اغْفِرْ لِي وَلِوَالِدَيَّ وَلِلْمُؤْمِنِينَ يَوْمَ يَقُومُ الْحِسَابُ
Transliteration
Rabbanaghfir li wa liwalidayya wa lil-mu'minina yawma yaqumul-hisab
English meaning
Our Lord, forgive me, my parents and the believers on the Day when the reckoning is established.
When is it recited?
Recited in the final sitting of the prayer, after the Tashahhud and the salawat (Allahumma salli, Allahumma barik) and before the salam, as one of the supplications made there.
Source
Ibrahim 14/41