What is the ruling when two individuals pledge their jointly owned slave to two creditors?

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If two individuals pledge their jointly owned slave to two creditors for a debt of one thousand, this constitutes four distinct contracts. Consequently, one quarter (a quarter share from each owner to each creditor) of the slave is pledged for two hundred and fifty (the corresponding portion of the debt). When the responsible party settles the corresponding debt amount, that specific portion of the pledge is released. This ruling, stated by Al-Qadi, is considered correct.