Surah At-Tawbah 9:114

وَمَا كَانَ ٱسْتِغْفَارُ إِبْرَٰهِيمَ لِأَبِيهِ إِلَّا عَن مَّوْعِدَةٍ وَعَدَهَآ إِيَّاهُ فَلَمَّا تَبَيَّنَ لَهُۥٓ أَنَّهُۥ عَدُوٌّ لِّلَّهِ تَبَرَّأَ مِنْهُ ۚ إِنَّ إِبْرَٰهِيمَ لَأَوَّٰهٌ حَلِيمٌ

And the request of forgiveness of Abraham for his father was only because of a promise he had made to him. But when it became apparent to him [i.e., Abraham] that he [i.e., the father] was an enemy to Allāh, he disassociated himself from him. Indeed was Abraham compassionate and patient.

Translation: Saheeh International

Tafsir

Abraham’s prayer for the forgiveness of his father was only because of a promise he had made to him when he said to him I will ask my Lord forgiveness for you Q. 1947 in the hope that he would submit to God; …

Excerpt from Tafsir al-Jalalayn, commentary on 9:114, via Quran.com. The reader has the full commentary and 9 more tafsirs.