One who weeds ḥasayot with a Samaritan may eat a casual meal from them without tithing, as any untithed produce may be eaten in the framework of a casual meal. And when he completes the labor on the ḥasayot, places them into a pile, and they require tithing, he tithes them as produce that is definitely obligated in tithing, not as doubtfully tithed produce, as the assumption is that the Samaritan did not tithe the ḥasayot.

Rabbi Shimon ben Elazar says: If the ḥasayot belong to a Jew who is suspect about observance of the Sabbatical Year, at the conclusion of the Sabbatical Year it is permitted to weed with him, as there is no concern that there might be Sabbatical-Year sanctity. The Gemara asks: Is this to say that the permitted growths of the eighth year neutralize the prohibition, and that is why there is no concern about Sabbatical-Year sanctity? The Gemara rejects that inference: And perhaps the tanna is speaking with regard to an item whose seeds cease after it is sown, whose growths neutralize the original prohibition? The Gemara rejects that possibility: Isn’t it taught in a baraita: These are ḥasayot, for example, arum, garlic, and onions, whose seeds do not cease?

The Gemara asks: And perhaps the tanna is speaking with regard to plants that were crushed before they sprouted growths? The Gemara answers: It is the case of one who is suspect about observance of the Sabbatical Year, that is taught in the baraita, and one who is suspect would not bother to eliminate the prohibition by crushing it. The Gemara asks: And perhaps the tanna is speaking with regard to a mixture of forbidden ḥasayot and permitted ones, and the reason that it is permitted is that the prohibition was neutralized by the majority of permitted ḥasayot? The Gemara answers: One who weeds, is taught in the baraita, indicating that he is eating the leaves as he weeds them, leaving no opportunity for the ḥasayot to be mixed with others.

The Gemara suggests: Let us say that this is a conclusive refutation of the opinions of Rabbi Yoḥanan and Rabbi Yonatan, who stated regarding orla and food crops in a vineyard that their permitted growth does not neutralize the prohibition of the original fruit or food crops respectively. Rabbi Yitzḥak said: The Sabbatical-Year produce is different. Since its prohibition is engendered by means of the ground, its nullification is effected by means of the ground as well. The prohibition can be neutralized by means of the growth that results from replanting the forbidden plant in a permitted manner.

The Gemara asks: Isn’t there the case of tithe, whose prohibition is engendered by means of the ground, but its nullification is not effected by means of the ground? As it is taught in a baraita: With regard to a litra of untithed first tithe from which the teruma of the tithe was not taken, which one sowed in the ground, and it grew and it is now approximately ten litra, that additional growth is obligated to have tithe taken and is subject to the halakhot of Sabbatical-Year produce. And with regard to that original litra of untithed first tithe that he sowed, one tithes for it from produce in a different place, and not from the litra itself, based on a calculation of how much teruma of the tithe needed to be taken from that litra. Apparently, the growth that results from sowing the first tithe in the ground does not neutralize its prohibition.