496 — They unanimously agree that if someone sells a specified commodity for a known price with the payment deferred to a fixed term expressed in the Arab lunar months, the sale is valid.

497 — They unanimously agree that a salam (forward sale) in food is invalid when it is stated as one qafiz (a measure of capacity) whose exact size is unknown, and likewise invalid for a cloth measured by “so-and-so’s cubit.”

498 — They unanimously agree that it is forbidden for a man to convert one dinar owed to him by another into a salam in food to be delivered at a set date.

499 — They unanimously agree that a salam in garments is permissible, provided the cubit measure is specified and the description is precise regarding length, width, and fineness.

500 — They unanimously agree that a salam in rendered fat is permissible so long as the quantity is clearly specified.

501 — They unanimously agree that if a Christian enters into a salam with another Christian for wine, and then one of them becomes Muslim, the one who has embraced Islam is entitled to reclaim his dirhams.

502 — They unanimously agree that a person may sell his merchandise for “so-many dinars minus a qirat,” or for “a dinar and a dirham.”

503 — They unanimously agree that when a present, identified commodity is sold for a known price, and both buyer and seller have full knowledge of the item and are legally competent, the sale is valid.

504 — They unanimously agree that if someone sells a commodity for an unknown, unspecified price that is neither determined nor present in hand, the sale is invalid.

505 — They unanimously agree that when the slaves of the People of the Covenant embrace Islam, they are to be sold away from their non-Muslim owners.

506 — They unanimously agree that borrowing items—whether foodstuffs or other goods—is permissible.

507 — They unanimously agree that if a person borrows something that may lawfully be borrowed and then returns its like, that is permissible.