The level of prohibited profiteering is 1/6 over cost and labor: Bava Metzia 40b
Rescinding the sale, for profiteering over 1/6 on items to which the standard laws of Onaah do not apply (as described below in "Specific Types of Sales/Items"): Temurah 27a-b
Specific Types of Sales
Application of Onaah to redemption of sanctified property: Temurah 27a-b
Whether one can ascertain what the purchaser's intended purchase was, by the amount of money invested, or not: Bava Metzia 40b
Performing a sale on condition that the laws prohibiting profiteering will not apply, or on condition that the purchaser will not claim that there is profiteering involved: Makkot 3b
Prohibited profiteering doesn't apply to items which are sold by count, measure or weight; rather, the sale is invalid: Menachot 69a
Prohibited profiteering doesn't apply to sales of territory: Bava Kamma 14b, Menachot 69a
Prohibited profiteering applies to produce planted in a pot: Menachot 69a
Whether there is Prohibited profiteering on replanted produce: Menachot 69a
Prohibited profiteering doesn't apply to sales of avadim: Bava Kamma 14b
Prohibited profiteering doesn't apply to sales of Bills: Bava Kamma 14b
Transactions Involving Specific Items
Application of Onaah to sale of land: Temurah 27a-b
Intentionally adding sediment to liquids for sale: Bava Metzia 40b
It is understood that sale of a measure of olive oil includes its sediment: Bava Metzia 40a, 40b
Acceptable dross in sales to a merchant, as opposed to sales to consumers: Bava Metzia 40b
The question of what is acceptable in a sale depends upon the local custom: Bava Metzia 40a
Hills are defined by Berries: Pesachim 53a
Valleys are defined by Palm Trees: Pesachim 53a
"Nachal" is defined by Reeds: Pesachim 53a
Plains are defined by Shikmah [Sycamore]: Pesachim 53a
"Virgin land" refers to land which has never been worked: Niddah 8b
A "Virgin Sycamore [or any non-fruit tree?]" refers to a tree which has never been chopped back: Niddah 8b
Sale of an egg "born of a live chicken": Beitzah 6b-7a
Sale of an egg "fertilized by a male": Beitzah 7a
If someone bought an Eved and then discovered that he was a thief, a kidnapper, wanted by the government or a condemned man: Kiddushin 11a
If someone bought/rented a house on the Eve of Pesach and discovered that the Search for Leaven had not been done: Pesachim 4b
Sale of a toothless ox, which dies when left to graze for its food: Bava Metzia 42b
