Man Lā Yaḥḍuruh al-Faqīh #402Hadith.4031 - Ya'qub ibn Shu'ayb asked Abu Abdullah (as) about a man who lends dirhams of lower quality and then receives better-quality...
Al-Kāfi #673“Exchange of gold for gold, silver for silver by weight in equal quantities is balanced. One does not have preference over the other. Silver...