ومن اشترى شيئا بنصف درهم فلوسا جاز البيع
Translation: Someone who buys an item for half a dirham's worth of fulus has made a valid sale.
The wording does not mean a half-dirham weight of copper. It denotes the quantity of fulus sold for half a silver dirham in that market.
If 1 dirham buys 20 accepted fulus, the price represents 10 such coins. The illustration assumes a known, stable local convention at the time of contracting.
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Pricing goods in half a dirham’s worth of fulus
Bab al-Sarf: Circulating Fulus, Obsolete Coins and Money-Changer Exchanges
ومن اشترى شيئا بنصف درهم فلوسا جاز البيع
Translation: Someone who buys an item for half a dirham's worth of fulus has made a valid sale.
The wording does not mean a half-dirham weight of copper. It denotes the quantity of fulus sold for half a silver dirham in that market.
If 1 dirham buys 20 accepted fulus, the price represents 10 such coins. The illustration assumes a known, stable local convention at the time of contracting.