Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both), concerning the account of the Hajj of the Prophet (peace and blessings be upon him), said that the Prophet (peace and blessings be upon him) declared in his sermon: "Behold! Every matter of the Days of Ignorance (Jahiliyyah) has been placed beneath my feet, and the usury (riba) of the Days of Ignorance is abolished, and the first usury I abolish is the usury of Abbas bin Abd al-Muttalib (may Allah be pleased with him), for it is all abolished."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18229