كتاب المظالم
Read the English translation first, with the original Arabic directly underneath.
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "Whoever has oppressed another person concerning his reputation or anything else, he should beg him to forgive him before the Day of Resurrection when there will be no money (to compensate for wrong deeds), but if he has good deeds, those good deeds will be taken from him according to his oppression which he has done, and if he has no good deeds, the sins of the oppressed person will be loaded on him."
مَنْ كَانَتْ لَهُ مَظْلَمَةٌ لأَحَدٍ مِنْ عِرْضِهِ أَوْ شَىْءٍ فَلْيَتَحَلَّلْهُ مِنْهُ الْيَوْمَ، قَبْلَ أَنْ لاَ يَكُونَ دِينَارٌ وَلاَ دِرْهَمٌ، إِنْ كَانَ لَهُ عَمَلٌ صَالِحٌ أُخِذَ مِنْهُ بِقَدْرِ مَظْلَمَتِهِ، وَإِنْ لَمْ تَكُنْ لَهُ حَسَنَاتٌ أُخِذَ مِنْ سَيِّئَاتِ صَاحِبِهِ فَحُمِلَ عَلَيْهِ