Quran 9:114 from Surah At-Tawba on Divine Marvels.
وَمَا كَانَ ٱسۡتِغۡفَارُ إِبۡرَٰهِيمَ لِأَبِيهِ إِلَّا عَن مَّوۡعِدَةٖ وَعَدَهَآ إِيَّاهُ فَلَمَّا تَبَيَّنَ لَهُۥٓ أَنَّهُۥ عَدُوّٞ لِّلَّهِ تَبَرَّأَ مِنۡهُۚ إِنَّ إِبۡرَٰهِيمَ لَأَوَّٰهٌ حَلِيمٞ
English translation: And not was (the) asking of forgiveness (by) Ibrahim for his father except because (of) a promise he had promised it (to) him But when it became clear to him that he (was) an enemy to Allah he disassociated from him Indeed Ibrahim (was) compassionate forbearing
Transliteration: wama kana is'tigh'faru ib'rahima li-abihi illa an maw'idatin wa'adaha iyyahu falamma tabayyana lahu annahu aduwwun lillahi tabarra-a min'hu inna ib'rahima la-awwahun halimun