Surah Ash-Shu'ara — Ayah 86 (26:86)
وَٱغۡفِرۡ لِأَبِيٓ إِنَّهُۥ كَانَ مِنَ ٱلضَّآلِّينَ ٨٦
English translation (Saheeh International)
And forgive my father. Indeed, he has been of those astray.
Brief commentary
And forgive my father. Indeed, he was one of those who deviated from the truth due to idolatry. Abraham supplicated on behalf of his father before it became clear to him that he was from among the people of hell. When that became clear to him, he proclaimed his disassociation with him and no longer supplicated for him.