الكافي- ط الاسلامية, volume 5, page 246

7. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from Ishaq ibn ‘Ammar who has said the following: “I once asked Abu Ibrahim (a.s.), about the case of a man who sold to me wariq (dirham) for dinar and I weighed it from him. I weighed it for him until it was complete and there was no other work between us, except that his wariq (dirham) had invalid and unreal pieces, and what was not permissible in them. He asked me to find and return such pieces. He (the Imam) said, It is not unlawful; however, you must not delay it more than one day or two, because it is an exchange. I then asked, ’What happens if I find extra in them equal to the amount of invalid ones ? He (the Imam) said, ‘This is a precautionary measure and I like it more.

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

8. Safwan has narrated from Ishaq ibn ‘Ammar who has said the following: “This is concerning my question before abu ‘Abd Allah (a.s.), if exchange of dirham for dirham and lead was permissible. He (the Imam) said, ‘Lead is not valid . 555

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

9. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Safwan from ‘Abd al- Rahman ibn al-Hajjaj who has said the following: “I once asked him (the Imam) (a.s.), about currency exchange, saying, ‘The comrades perhaps hurry and I go with them but cannot find al-Dimishqiyah (dirham) or al-Basriyah; they only allow only Sabur of al-Dimishqiyah and al-Basriyah. He (the Imam) asked, ‘What is a comrade? I replied, ‘A group of people get together to travel and when they hurry we may not find al-Dimishqiyah and al-Basriyah; then we send invalid dirham and they exchange it one thousand and fifteen for one thousand al-Dimishqiyah and al-Basriyah . He (the Imam) said, ‘There is nothing good in it. Why you do not place gold instead of the extra ? I then asked, ‘Can I buy one thousand dinar for two thousand dirhams? 5 He (the Imam) said, It is not unlawful. My father was more influential than me among the people of al-Madinah and he would say this. People would say it is running away. If a man comes with dinar he does not give it for a thousand dirham, and if he comes with one thousand dirham, he does not give one thousand dinar. He (the Imam) would say to them, ‘Yes, running away from unlawful matters to lawful ones is the best policy. Ali ibn Ibrahim has narrated from his father and Muhammad ibn ‘Isma’il has narrated from al-Fadl ibn Shadhan from Safwan ibn Yahya and ibn Abu ‘Umayr from ‘Abd al-Rahman, a similar Hadith.

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