1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Mahbub from Ibrahim ibn Mihzam from Talhah ibn Yazid who has said the following: “Abu ‘ Abd Allah (a.s.), has said that the Messenger of Allah has said, ’It is not lawful to buy a debt with debt (on credit).”’

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

2. Ahmad ibn Muhammad has narrated from al-Hassan ibn Ali from Muhammad ibn al-Fudayl from abu Hamzah who has said the following: “I once asked abu Ja’far (a.s.), about the case of a man to whom another person owes a loan and a third person buys the loan from the creditor to collect it from the debtor. The collector demands the debtor for payment; and (what is the Imam’s) judgment in this issue. Abu Ja’far (a.s.), made a pronouncement that said, The debtor can pay to the collector what he (the collector) has paid to the creditor.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

3. Muhammad ibn Yahya and others have narrated from Muhammad ibn Ahmad from Muhammad ibn ‘Isa from Muhammad ibn al- Fudayl who has said the following: “I once asked al-Rida’ (a.s.), about the case of a man who buys a loan to collect it from the debtor and demands the debtor for payment. He (the Imam) said, The debtor pays what the collector has paid to the creditor and in so doing becomes free of the responsibility of paying all that was due on him.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.