Mishnayos Oholos Perek 18 Mishnah 2

ומוליך לגת – even he himself. For since he is careful and he has recognition that he places it in an inverted vessel and hasn’t touched it.

במה דברים אמורים כברם הנעשה בית הפרס – that the vines and trees were planted in it prior to it becoming a field declared unclean on account of crushed bones carried over from a ploughed grave. But a person who touches it ab initio in the field declared unclean on account of crushed bones carried over from a ploughed grave [should sell them in the market].

ימכר לשוק – that we fine him, because he should not have planted in a field declared unclean on account of crushed bones carried over from a ploughed grave. But the Halakha is not according to Rabbi Yossi.

שלשה בית הפרס הן – that he considers them and leaves. A field in which a grave is ploughed up, and a field that lost a grave, and a field of mourners/tomb niches.

ניטעת כל נטע (planted with any kind of tree) – he plants in it all the trees that he wishes. But our Mishnah is not according to Rabbi Yossi who forbid this above (see Mishnah 1). But one can say that even Rabbi Yossi did not forbid other than to plant in it a vineyard alone, because the person who harvests grapes to the vat makes it susceptible [to receive ritual defilement], but not to the rest of the trees.

חוץ מזרע הנקצר – but seed that is uprooted with its roots, we are concerned/worried lest he bring a bone like the size of a barleycorn with the irt that comes up with the roots that are uprooted.

ואם עקרו – that seed that is sown.

צובר את גורנו לתוכו (heaps up the threshing floor in it) – into the midst of the field itself. And he threshes it there. And he does not brig it to the house until after threshing, so as to not increase the defilement.

וכוברו בשתי כברות (and he sifts it twice in two sieves) - one after another, lest a bone the size of a barleycorn become combined with it.

והקטנית בשלש – because the pulse has more dirt than does the grain, because of this they are more worried. But they are ritually pure, for they have not become fit for Levitical uncleanness. And the Halakha is according to the Sages.

ושורף את הקש ואת העצה (and he burns the stubble and the pea-stalks) -within the field. Lest they have a bone the size of a barleycorn.

ואינה מטמאה באוהל – for all of its defilement is because of a bone the size of barleycorn, but the bone the size of a barleycorn does not defile in a tent.