Mukayalah: “Five specified measures from this heap.” The obligation is defined by a measured quantity.
Mujazafah: “This entire heap before you.” The obligation is defined by one identified bulk lot.
A shortfall in a quantified sale and a failure to deliver the identified lot are different disputes. The formal consequences must be judged by the actual contract terms.
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Kitab al-Buyu: Grain Sales, Bulk Heaps, Qafiz and Unit Prices
Mukayalah: “Five specified measures from this heap.” The obligation is defined by a measured quantity.
Mujazafah: “This entire heap before you.” The obligation is defined by one identified bulk lot.
A shortfall in a quantified sale and a failure to deliver the identified lot are different disputes. The formal consequences must be judged by the actual contract terms.