LessonsBab al-Sarf: Mixed Currency Exchanges, Debased Coins and ObsolescenceQuiz

وَمَنْ بَاعَ أَحَدَ عَشَرَ دِرْهَمًا بِعَشَرَةِ دَرَاهِمَ وَدِينَارٍ جَازَ الْبَيْعُ
Translation: Exchanging 11 dirhams for 10 dirhams and 1 dinar is valid.
Here one side consists solely of silver; the other combines silver with gold. Ten dirhams are allocated against the ten dirhams, and the remaining one dirham against the gold dinar.

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Eleven dirhams for ten dirhams and a dinar

Bab al-Sarf: Mixed Currency Exchanges, Debased Coins and Obsolescence

وَمَنْ بَاعَ أَحَدَ عَشَرَ دِرْهَمًا بِعَشَرَةِ دَرَاهِمَ وَدِينَارٍ جَازَ الْبَيْعُ
Translation: Exchanging 11 dirhams for 10 dirhams and 1 dinar is valid.
Here one side consists solely of silver; the other combines silver with gold. Ten dirhams are allocated against the ten dirhams, and the remaining one dirham against the gold dinar.