Musannaf Ibn Abi Shayba 34:239

Hatim narrated to us, Ja'far ibn Muhammad narrated to us, from his father, from Jabir, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The first usury (riba) that I abolish is the usury of Al-'Abbas ibn 'Abd al-Muttalib."