To be good to a father who is a Mushrik Sahih al-Bukhari 5978
Arabic hadith text
حَدَّثَنَا الْحُمَيْدِيُّ، حَدَّثَنَا سُفْيَانُ، حَدَّثَنَا هِشَامُ بْنُ عُرْوَةَ، أَخْبَرَنِي أَبِي، أَخْبَرَتْنِي أَسْمَاءُ ابْنَةُ أَبِي بَكْرٍ ـ رضى الله عنهما ـ قَالَتْأَتَتْنِي أُمِّي رَاغِبَةً فِي عَهْدِ النَّبِيِّ صلى الله عليه وسلم فَسَأَلْتُ النَّبِيَّ صلى الله عليه وسلم آصِلُهَا قَالَ " نَعَمْ ". قَالَ ابْنُ عُيَيْنَةَ فَأَنْزَلَ اللَّهُ تَعَالَى فِيهَا
Translation
Narrated Asma' bint Abu Bakr
My mother came to me, hoping (for my favor) during the lifetime of the Prophet. I asked the Prophet, "May I treat her kindly?" He replied, "Yes." Ibn 'Uyaina said, "Then Allah revealed: 'Allah forbids you not with regards to those who fought not against you because of religion, and drove you not out from your homes, that you should show them kindness and deal justly with them.'.......(60.8)