Chapter on Loans
A loan is valid with any tangible asset whose sale is valid, except a human being.
It is required that the amount and distinguishing features be known, and that the lender1 be legally qualified to make a gratuitous disposition.
The contract is concluded by acceptance, and ownership together with liability passes upon taking possession; therefore, the lender no longer has the right to reclaim the very item loaned, and the borrower becomes immediately obliged to render its substitute. If the item is non-fungible and valued by appraisal, its value at the time of the loan2 is owed; if it is fungible, an equivalent of the same kind is owed, provided the replacement is free of defect. As for copper coins and the like which the ruler later removes from circulation, the borrower must repay their value.
It is permissible to stipulate a pledge or a guarantor for the loan. It is also permissible to loan water measured by volume, and bread or khamīr (dough) counted in units, and to have them repaid in the same number, so long as no increase is intended.
Every loan that brings about a benefit is forbidden—such as the lender letting the borrower live in his house, lending him his mount, or requiring him to repay with something better. If, however, the borrower does any of that voluntarily without a prior condition, or repays with something better without prior agreement, it is permissible.
Whenever the borrower offers the amount he owes in a place other than the lender’s town3, and there is no cost for transporting it, the lender is obliged to accept it.