herding. Therefore, he is permitted to substitute them with their likes. If some of them are destroyed, the contract for that part does not become void, and he is entitled to substitute them. If the contract is entered into for something described in terms of liability, then the genus and species of the animal must be mentioned, whether it be camels, cattle, sheep, ewes, or goats. If he uses the term cattle or camels generally, it does not include water buffalo or Bactrian camels, because the unrestricted use of the name does not include them according to custom. If the contract is made in a place where the unrestricted use of the name includes them, he is required to mention the specific type he sees, such as sheep, because every type has an impact on the labor of the shepherd. He must also mention their size, saying: adults or offspring (lambs), or calves or young camels, unless there is a context or custom that directs the meaning toward some of them, which would make mentioning them unnecessary. When he contracts for a described number, such as a hundred, he is not obligated to herd any more than that, whether they are their offspring or otherwise. If he makes an unrestricted contract and does not mention a number, it is not valid. This is the manifest position of the Shafi'i school. The Qadi said: It is valid and is interpreted according to what is customary, such as one hundred sheep or similar. This is the view of some of the Shafi'i scholars. The first view is more correct, because custom in this regard varies and differs greatly, as the work differs according to its variation.

Section: Regarding what may be leased, it is permissible to lease any entity from which a permissible benefit can be derived, while the entity remains in its original state, such as land, a house, a slave, an animal, garments, pavilions, ropes, tents, litters, saddles, bridles, a sword, a spear, and similar things. We have already mentioned many of the things that may be leased in their appropriate places. It is permissible to lease jewelry. Ahmad affirmed this in a narration from his son Abdullah. This is also the view of Al-Thawri, Al-Shafi'i, Ishaq, Abu Thawr, and the People of Opinion (Ahl al-Ra'y). It was narrated from Ahmad that he said regarding the leasing of jewelry: "I do not know what that is." The Qadi said: This is interpreted as leasing it for a fee