14-Surah Ibrahim ( Abraham ) 41
Our Lord, forgive me and my parents and the believers the Day the account is established.’
رَبَّنَا اغْفِرْ لِي وَلِوَالِدَيَّ وَلِلْمُؤْمِنِينَ يَوْمَ يَقُومُ الْحِسَابُ
Quran's Tafhim ( explanation)
*53) Prophet Abraham included his mushrik father in his prayer because he had made promise that the would pray to his Lord for his forgiveness (XIX: 48). But afterwards when he realized that he should not pray for his forgiveness because he was an enemy of Allah, he absolved himself of that promise. (IX: 114).