Sahih Muslim Book 10, Hadith Number 3880.
Chapter : Pledge and its permissibility whether at residence or in a journey.
‘Abdullah (b. Mas’ud) (Allah be pleased with him) said that Allah’s Messenger (may peace be upon him) cursed the one who accepted interest and the one who paid it I asked about the one who recorded it, and two witnesses to it. He (the narrator) said: We narrate what we have heard.