Al-Adab Al-Mufrad, Book 7, Hadith 2 (In-Book) ⓘ
Mundhir at-Tawri reported what Muhammad ibn 'Ali (ibn al-Hanafiyya) said about, "Is the repayment of kindness anything except kindness?" He said, "It is not denied to either the pious or the deviant."
حَدَّثَنَا الْحُمَيْدِيُّ، قَالَ: حَدَّثَنَا سُفْيَانُ، قَالَ: حَدَّثَنَا سَالِمُ بْنُ أَبِي حَفْصَةَ، عَنْ مُنْذِرٍ الثَّوْرِيِّ، عَنْ مُحَمَّدِ بْنِ عَلِيِّ بْنِ الْحَنَفِيَّةِ: {هَلْ جَزَاءُ الإِحْسَانِ إِلاَّ الإِحْسَانُ}، قَالَ: هِيَ مُسَجَّلَةٌ لِلْبَرِّ وَالْفَاجِرِ.
also referenced under: Hadith 130 (Reference) & Book 7, Hadith 130 (English)