My mother came to me during the lifetime of Messenger of Allah ﷺ and she was a Mushrikah (polytheist, idolatress, pagan). I said to Messenger of Allah ﷺ (seeking his verdict), "My mother has come to and she desires to recieve a reward from me, shall I keep good relations with her ?" The Prophet ﷺ said, "Yes, keep good relation with her."  

أَنَّ رَسُولَ اللَّهِ ﷺ أَعْطَى ذَلِكَ صُهَيْبًا فَقَالَ مَرْوَانُ مَنْ يَشْهَدُ لَكُمَا عَلَى ذَلِكَ قَالُوا ابْنُ عُمَرَ فَدَعَاهُ فَشَهِدَ لأَعْطَى رَسُولُ اللَّهِ ﷺ صُهَيْبًا بَيْتَيْنِ وَحُجْرَةً فَقَضَى مَرْوَانُ بِشَهَادَتِهِ لَهُمْ