According to Abu Hanifah, where a creditor receives the amount due in debased dirhams, spends them and discovers the defect only later, he has no further claim in this specific case.
The reasoning given is that the due quantity was received and this type of fungible coin quality is not separately compensated after the coins have been spent. That is not approval of deception; it is a ruling about the remaining civil claim after this sequence of events.
Opening interactive controls...
Abu Hanifah on dirhams spent before discovery
Kitab al-Rahn: Salam, Sarf, Third-party Custody and Fungible Collateral
According to Abu Hanifah, where a creditor receives the amount due in debased dirhams, spends them and discovers the defect only later, he has no further claim in this specific case.
The reasoning given is that the due quantity was received and this type of fungible coin quality is not separately compensated after the coins have been spent. That is not approval of deception; it is a ruling about the remaining civil claim after this sequence of events.