Quduri allows bulk exchange (mujazafah) of gold against silver: the identified, present items are exchanged as a whole without first determining matching weights.
Because the two metals are different genera, equality of weight is not required. Bulk contracting does not remove the obligation of mutual possession before separation.
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Bulk exchange without matching weights
Bab al-Sarf: Precious-Metal Exchange, Possession and Composite Goods
Quduri allows bulk exchange (mujazafah) of gold against silver: the identified, present items are exchanged as a whole without first determining matching weights.
Because the two metals are different genera, equality of weight is not required. Bulk contracting does not remove the obligation of mutual possession before separation.