Sahih Bukhari Volume 8, Book 78, Hadith 5981

وَقَالَ اللَّيْثُ حَدَّثَنِي هِشَامٌ، عَنْ عُرْوَةَ، عَنْ أَسْمَاءَ، قَالَتْ قَدِمَتْ أُمِّي وَهْىَ مُشْرِكَةٌ فِي عَهْدِ قُرَيْشٍ وَمُدَّتِهِمْ، إِذْ عَاهَدُوا النَّبِيَّ صلى الله عليه وسلم مَعَ أَبِيهَا، فَاسْتَفْتَيْتُ النَّبِيَّ صلى الله عليه وسلم فَقُلْتُ إِنَّ أُمِّي قَدِمَتْ وَهْىَ رَاغِبَةٌ ‏{‏أَفَأَصِلُهَا‏}‏ قَالَ ‏"‏ نَعَمْ صِلِي أُمَّكِ ‏"‏‏.‏

Narrated Asma: My mother who was a Mushrikah (pagan, etc.), came with her father during the period of peace pact between the Muslims and the Quraish infidels. I went to seek the advice of the Prophet (pbuh) saying, “My mother has arrived and she is hoping (for my favour).” The Prophet (pbuh) said, “Yes, be good to your mother.”