١٢- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ عَنْ مَنْصُورِ بْنِ يُونُسَ عَنْ إِسْحَاقَ بْنِ عَمَّارٍ عَنْ عُبَيْدِ بْنِ زُرَارَةَ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنِ الرَّجُلِ يَكُونُ لِي عِنْدَهُ دَرَاهِمُ فَ‏آتِيهِ فَأَقُولُ حَوِّلْهَا دَنَانِيرَ مِنْ غَيْرِ أَنْ أَقْبِضَ شَيْئاً قَالَ لا بَأْسَ قُلْتُ يَكُونُ لِي عِنْدَهُ دَنَانِيرُ فَ‏آتِيهِ فَأَقُولُ حَوِّلْهَا لِي دَرَاهِمَ وَأَثْبِتْهَا عِنْدَكَ وَلَمْ أَقْبِضْ مِنْهُ شَيْئاً قَالَ لا بَأْسَ.
12. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn ‘Isma’il from Mansur ibn Yunus from Ishaq ibn ‘Ammar from ‘Ubayd ibn Zurarah who has said the following: “This is concerning my question before abu ‘Abd Allah , about the case of a man with whom I had a certain amount of dinars; I asked him to change them to dirhams and keep them with himself. I did not take possession of any of them . 5 He (the Imam) said, ‘It is not unlawful . 555 