الكافي- ط الاسلامية, volume 5, page 100

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 — attributed by Thaqalayn·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 — attributed by Thaqalayn·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 — attributed by Thaqalayn·The Arabic above is the original.

1. Al-Husayn ibn Muhammad has narrated from Mu’alla’ ibn Muhammad from al-Hassan ibn Ali from Hammad ibn ‘Uthaman who has said the following: “Once, a man came to abu ‘ Abd Allah (a.s.), to complain before him (the Imam) against one of his companions. In a little while the defendant came in and abu ‘Abd Allah (a.s.), asked, ‘Why does so and so complain against you?’ He replied, ‘It is because I asked him for payment of what he owes to me.’ He (the narrator) has said that abu ‘Abd Allah (a.s.), then sat straight with anger and said, ‘It seems as if when you demand for payment of what others owe, you do not consider it maltreating him. Consider what Allah, most Majestic, most Glorious, has said in His book, ‘They fear dreadful accounting.’ (13:21) Do you think they fear that Allah will do injustice to them? No, by Allah, that is not the case. They did not fear anything but demand for payment of what is owed to them and Allah, most Majestic, most Glorious, has called it (demand for payment) dreadful accounting, thus one who demands payment has maltreated him (debtor).”’

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.