Ash-Sha’bi reported: Jesus the son of Mary, peace and blessings be upon him, said, “Verily, excellence (ihsan) is that you are good to those who are evil to you, not that you are good only to those who are good to you.”

Source: Tafseer Ibn Kathir 29:69

عَنِ الشَّعْبِيِّ قَالَ قَالَ عِيسَى ابْنُ مَرْيَمَ عَلَيْهِ السَّلَامُ إِنَّمَا الْإِحْسَانُ أَنْ تُحْسِنَ إِلَى مَنْ أَسَاءَ إِلَيْكَ لَيْسَ الْإِحْسَانُ أَنْ تُحْسِنَ إِلَى مَنْ أَحْسَنَ إِلَيْكَ

29:69 تفسير القرآن العظيم تفسير سورة العنكبوت