The Book of Transactions (Kitab Al-Buyu`)
Muslim :: Book 10 : Hadith 3780
Abdullah b. Ka'ab b. Malik reported from his father that he pressed in the mosque Ibn Abu Hadrad for the payment of the debt that he owed to him during the lifetime of Allah's Messenger (may peace be upon him). (In this altercation) their voices became loud, until Allah's Messenger (may peace be upon him) heard them, while he was in the house, so Allah's Messenger (may peace be upon him) came out towards them, and he lifted the curtain of his apartment and he called upon Ka'b b. Malik and said: O Ka'b. He said: At thy beck and call, Allah's Messenger. He pointed out with the help of his hand to remit half of the loan due to him. Ka'b said: Allah's Messenger, I am ready to do that, whereupon Allah's Messenger (may peace be upon him) said (to Ibn Abu Hadrad): Stand up and make him the payment (of the rest).