[If] one makes an exchange with the poor —- with respect to his, he is exempt; but with respect to that of the poor, he is liable.  [If] two people contracted for a field as sharecroppers, this one gives to that one his share of maasar ani, and that one gives to this one his share of maasar ani.  [If] one contracts to harvest a field, he is forbidden [to take its] leket, shich'chah, peah, or maasar ani. Said R' Yehudah: When is this? When he contracts from him for a half, a third, or a quarter; but if [the owner] said to him: “A third of what you harvest shall be yours” —- he is permitted to take leket, shich'chah, and peah, but he is forbidden to take maasar ani.

[If] someone sells his field, the seller is permitted, but the buyer is forbidden.  A person may not hire workers on condition that his son shall glean behind him. [If] one does not allow the poor to glean, or [if] he allows one and not another, or [if] he assists one of them, he is robbing the poor. About this it is said: Move not the landmark of them that came up (Proverbs 22:28; 23:10).

[If] the workers forgot a sheaf but the owner did not forget it, [or if] the owner forgot it but the workers did not forget it, [or if] poor people stood in front of it or covered it with stubble, this does not constitute shich'chah.

[If] one gathers sheaves to form helmet-shaped heaps or underground heaps, pancake-shaped heaps or large bundles, the law of shich'chah does not apply; from there to the threshing floor, the law of shich'chah applies. [If] one gathers sheaves to form a great stack, the law of shich'chah applies; from there to the threshing floor, the law of shich'chah does not apply. This is the rule: When sheaves are gathered to a place that is a finishing stage in the processing, the law of shich'chah applies; from there to the threshing floor, the law of shich'chah does not apply. [When sheaves are moved] to a place that is not a finishing stage in the processing, the law of shich'chah does not apply; from there to the threshing floor, the law of shich'chah applies.

Beis Shammai say: [Produce declared] ownerless for the poor is ownerless. But Beis Hillel say: It is not ownerless unless it is declared ownerless also for the rich as with Shemittah.  [If] all the sheaves of the field are each of one kav, and one is of four kavs, and he forgot that [one] —- Beis Shammai say: It is not shich'chah; but Beis Hillel say: It is shich'chah.

[If] a sheaf was close to a wall or a stack of grain, to cattle or implements, and he forgot it —- Beis Shammai say: It is not shich'chah; but Beis Hillel say: It is shich'chah.

The ends of rows, [or] the sheaf whose adjacent sheaves show [that it is not forgotten], [or if] one took hold of the sheaf in order to take it to the city and he forgot it —- they agree that it is not shich'chah.

And these are the ends of rows: [If] two workers started from the middle of the row, one facing north and one facing south, and they forgot [sheaves] in front of them and behind them —- that which is in front of them is deemed shich'chah and that which is behind them is not deemed shich'chah. [If] a lone worker started from the end of a row and forgot [sheaves] in front of him and behind him —- what is in front of him is not shich'chah, but what is behind him is shich'chah because it is governed by [the prohibition] (Deut. 24:19): Do not turn back.  This is the rule: Whatever is governed by “do not turn back” is shich'chah; whatever is not governed by “do not turn back” is not shich'chah.

Two sheaves are shich'chah, but three are not shich'chah. Two heaps of olives or carobs are shich'chah, but three are not shich'chah. Two stalks of flax are shich'chah, but three are not shich'chah. Two grapes are peret, but three are not peret. Two ears are leket; three are not leket. These [rulings] are in accordance with the opinion of Beis Hillel. But concerning all of them Beis Shammai say: Three [belong] to the poor and four [belong] to the owner.

[If] a sheaf contains two seahs and he forgot it, it is not shich'chah. [If] two sheaves contain two seahs —- Rabban Gamliel says: [They belong] to the owner; but the Sages say: [They belong] to the poor. Said Rabban Gamliel: From an abundance of sheaves, is the owner's strength enhanced or diminished? They said to him: His strength is enhanced. He said to them: Now if when there is one sheaf and it contains two seahs and he forgot it, it is not shich'chah, then when there are two sheaves and they contain two seahs, should it not follow that they are not shich'chah? They said to him: No. If you say [so] about one sheaf, which is like a stack, will you say [so] about two sheaves, which are like bundles?

[If] standing grain contains two seahs and he forgot it, it is not shich'chah. [If] it does not contain two seahs but it is capable of producing two seahs, even if it is of grasspea, we view it as if it were a kernel of barley.

Standing grain saves both a sheaf and standing grain. A sheaf saves neither a sheaf nor standing grain.  What standing grain is it that saves a sheaf? Any that is not forgotten, even one stalk.

A seah of detached grain and a seah of still-attached grain, and similarly with a tree, and garlic and onions, do not combine to [make up] two seahs; rather they are [the property] of the poor. R' Yose says: If the domain of the poor comes between them, they do not combine; but if not, then they do combine.

Grain that is given for fodder or for bindings, and similarly [stalks of] garlic for binding, bundles of garlic or onions, are not subject to the law of shich'chah.  All that are hidden in the ground, such as luf, garlic, and onions —- R' Yehudah says: They are not subject to the law of shich'chah; but the Sages say: They are subject to the law of shich'chah.

Someone harvesting at night, or removing sheaves [at night], or a blind person is subject to the law of shich'chah. If he intended to take only the large ones, he is not subject to the law of shich'chah.  If someone says: “Behold I am reaping on condition that what I forget I shall take,” he is subject to the law of shich'chah.