Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:2576Ḥajjāj b. Minhāl > Ḥammād b. Salamah > ʿAlī b. Zayd > Abū Ḥurrah al-Raqāshī > ʿAmmih

[Machine] I was taking hold of the reins of the Messenger of Allah's camel during the middle days of Tashreeq. I was preventing people from approaching him, so he said, "Indeed, all interest gained during the pre-Islamic era is deemed void. Indeed, Allah has decreed that the first interest to be voided is the interest of Abbas ibn Abdul Muttalib. Your capital (original amount) remains your own, and you shall neither impose injustice nor suffer injustice."  

الدارمي:٢٥٧٦حَدَّثَنَا حَجَّاجُ بْنُ مِنْهَالٍ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ أَنْبَأَنَا عَلِيُّ بْنُ زَيْدٍ عَنْ أَبِي حُرَّةَ الرَّقَاشِيِّ عَنْ عَمِّهِ قَالَ

كُنْتُ آخِذًا بِزِمَامِ نَاقَةِ رَسُولِ اللَّهِ ﷺ فِي أَوْسَطِ أَيَّامِ التَّشْرِيقِ أَذُودُ النَّاسَ عَنْهُ فَقَالَ «أَلَا إِنَّ كُلَّ رِبًا فِي الْجَاهِلِيَّةِ مَوْضُوعٌ أَلَا وَإِنَّ اللَّهَ قَدْ قَضَى أَنَّ أَوَّلَ رِبًا يُوضَعُ رِبَا عَبَّاسِ بْنِ عَبْدِ الْمُطَّلِبِ لَكُمْ رُءُوسُ أَمْوَالِكُمْ لَا تَظْلِمُونَ وَلَا تُظْلَمُونَ»