One who designated terumas maaser of demai, or maasar ani of definite [tevel], may not take them on the Sabbath. But if a Kohen or a pauper are accustomed to eat with him, they may come and eat [the tithes], provided that he informs them.

[If] one says to a person who is not trusted regarding tithes, ‘‘Purchase [produce] for me from someone who is trustworthy,’’ or ‘‘from someone who tithes,’’ [the agent] is not believed. [If he says, ‘‘Purchase produce] from So-and-So,’’ [the agent] is believed. [If the agent] went to buy from him, and said to [the one who sent him], ‘‘I did not find him, so I purchased [produce] for you from another [seller] who is trustworthy,’’ he is not believed.

[If] one enters a city and does not know anyone there, [and] said, ‘‘Who here is trust-worthy? Who here tithes?’’ [If] someone said to him, ‘‘I am [trustworthy],’’ he is not be-lieved. [If the informant] said to him, ‘‘So-and-So is trustworthy,’’ he is believed. [If] he went to buy from [that person, and] said to him, ‘‘Who here sells old [produce]?,’’ [and the seller] said to him, ‘‘The one who sent you to me,’’ even though [it appears] as if they are exchanging favors with one another, they are believed.

[If] donkey-drivers entered a town, [and] one [of them] said: ‘‘My [produce] is new, but my colleagues is old. My [produce] is not fixed, but my colleagues is fixed,’’ they are not believed. R’ Yehudah says: They are believed.