Bava Metzia 4:7 - 4:8

האונאה ארבעה כסף – for the purchase of a Selah which is a twenty-four silver Ma’ot. It is found that fraud is one-sixth as we have said. And [the Tanna of the Mishnah] repeated it because he had to teach about pleas/claims which are two silver Ma’ot (see Mishnah Shevuot, Chapter 6, Mishnah 1).

הטענה שתי כסף – for there is no oath imposed by the judges on a claim which is less than two silver [M’ah], for his plea is equivalent to two silver M’ah that I have in your hand, and he would admit from them the equivalent of a Perutah/penny, and denies the rest, or he admits to the entire thing and denies a Perutah.

ההודאה שוה פרוטה – to be a partial admission that he would be liable to take an oath.

המוצא שוה פרוטה – but less than this, he is not obligated to announce, as it is written (Deuteronoomy 22:3): “[…and so too shall you do with anything] that your fellow loses [and you find: you must not remain indifferent],” except for a lost object that is not worth the equivalent of a Perutah.

יוליכנו אחריו – if he admit that he swore falsely, for then, he has no atonement until he actually returns it to his hand, and not to the hand of his agent, as it is written (Numbers 5:7): “…giving to him who he has wronged.”

האוכל תרומה – the Great [Priest’s Due] (i.e., 2%). A foreigner (i.e., non-Kohen) who ate the Great Terumah/Priest’s Due.

ותרומת מעשר – a tithe from a tithe (i.e., the gift that the Levite gives to a Kohen – one-tenth of what he receives).

ותורמת מעשר של דמאי – He who purchases grain from an ignoramus, needs to separate the tenth-of-a-tenth, but not the Great Priest’s Due, for everyone was careful with it.

וחלה וביכורים – all of these five are one, and all of them are called “Terumah”/Priest’s Due, and from one denomination they come.

נטע רבעי – he derives "קודש"/”holy” (Leviticus 19:27) from "קודש" /”holy” (Leviticus 27:30) from Second Tithe, that one adds one fifth, and both of them are all considered one thing, since from one Biblical verse they are derived, since they are derived from Second Tithe.

ומעשר שני שלו – exactly, and he adds one-fifth, since it is written (Leviticus 27:31): “[If anyone wishes to redeem] any of his tithes, he must add one fifth to them.”

הקדשו – and not of others, for the word "המקדיש"/”who consecrates (Leviticus 27:19 – “And if he who consecrates the land wishes to redeem it, he must add one-fifth to the sum at which it was assessed, and it shall pass to him.”) is written.

הנהנה – inadvertently, is liable for a sacrifice of sacrilege (i.e., unlawful use of sacred property) and one-fifth.