The Sufficient (Vol 5) · Hadith 917 (#Ḥadīth #8)

8- صَفْوَانُ عَنْ إِسْحَاقَ بْنِ عَمَّارٍ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ الدَّرَاهِمُ بِالدَّرَاهِمِ وَالرَّصَاصِ فَقَالَ الرَّصَاصُ بَاطِلٌ.

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

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).