Related for Keritot 11:18

Administrators, who kept money for the poor, are not allowed to buy fruit for half the profit, because of the [danger of the] poor losing money [because of it], but they may buy from too low a market price and [resell] at a high market price. What is meant by ”summer” [קיץ] of the altar? One buys burnt offerings and ”summers” [מקיצין] the altar. If a man dedicates his property, and there are among them things fit for some congregational sacrifice, they are given to the craftsmen as wages, [These are] words of R. Akiba. Ben Azzai said to him: This is not the [proper] procedure! The worker who has done his work, whether for a 100 or for 200 [Zuz/Dinar], must not say: Give me this cow for a mine and this coat for 50 Zuz, for sacred things is not profaned by a job, but only by money.