520 — They unanimously agree that (1) the pledgor may increase the pledgee’s security, whether by adding to the existing collateral or by depositing additional items.

521 — They unanimously agree that a mukātib (a slave purchasing his own freedom) is entitled to pledge property whenever that is to his benefit.

522 — They unanimously agree that a pledge made by a mukātib is valid. Al-Shāfiʿī alone dissented, saying, “It is not valid.”

523 — They unanimously agree that if a man borrows an item from another on the understanding that he may pledge it for a specified number of dinars with a named custodian until an agreed time, and he does so exactly as authorised, the arrangement is lawful.

524 — They unanimously agree that when a slave who has been put up as collateral unintentionally commits against his master an offence for which he would ordinarily forfeit his own life, he nevertheless remains in pledge as before.

525 — They unanimously agree that if someone pledges one or more items against a debt, then pays off part of that debt and wishes (2) to release part of the collateral, he has no right to do so; nothing is removed from pledge until the balance is fully repaid or the creditor releases him from it.

526 — They unanimously agree that a Muslim may accept a copy of the Qur’an as collateral from his fellow Muslim.

Book of Muḍāraba (Profit-Sharing Investment)

527 — They unanimously agree that muḍāraba may be contracted with dinars or dirhams.

528 — They unanimously agree that the agent may stipulate with the capital-owner a third of the profit, half, or any other proportion on which they both agree, provided the share is a clearly defined fraction.

529 — They unanimously agree that a muḍāraba is void if either or both parties stipulate for themselves a fixed sum of dirhams.

530 — They unanimously agree that when a man entrusts funds to another for a muḍāraba, and the two later dispute while