وَأُجْرَةُ وَزَّانِ الثَّمَنِ عَلَى الْمُشْتَرِي
Translation: The wages of the person who weighs the price are borne by the buyer.
Wazzan al-thaman is the person who weighs the coins or other weighed price tendered in payment.
The buyer is responsible for furnishing the promised price, so the cost of verifying its weight is assigned to the buyer.
This concerns weighing the payment, not weighing the commodity being sold.
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Kitab al-Buyu: Grain in Ears, House Keys, Transaction Costs and Delivery
وَأُجْرَةُ وَزَّانِ الثَّمَنِ عَلَى الْمُشْتَرِي
Translation: The wages of the person who weighs the price are borne by the buyer.
Wazzan al-thaman is the person who weighs the coins or other weighed price tendered in payment.
The buyer is responsible for furnishing the promised price, so the cost of verifying its weight is assigned to the buyer.
This concerns weighing the payment, not weighing the commodity being sold.