אבל הכיר ולבסוף שכח מאי חייב על כל שבת ושבת אדתני היודע עיקר שבת ועשה מלאכות הרבה בשבתות הרבה חייב על כל שבת ושבת ליתני הכיר ולבסוף שכח וכ"ש הא מאי היודע עיקר שבת מי שהיה יודע עיקרה של שבת ושכחה
Rab and Samuel both maintain: Our Mishnah treats of a child who was taken captive among Gentiles, or a proselyte who became converted in the midst of Gentiles.<span class="x" onmousemove="('comment',' So that they never knew the laws of the Sabbath.
');"><sup>23</sup></span> But if one knew and subsequently forgot, he is liable [to a sin-offering] for every Sabbath.<span class="x" onmousemove="('comment',' He is regarded as knowing the sanctity of the Sabbath but forgetting on each occasion that it is the Sabbath.
');"><sup>24</sup></span> We learnt: HE WHO FORGETS THE ESSENTIAL LAW OF THE SABBATH: surely that implies that he knew [it] originally? — No: what is meant by HE WHO FORGETS THE ESSENTIAL LAW OF THE SABBATH? That the very existence of the Sabbath was unknown<span class="x" onmousemove="('comment',' Lit., 'forgotten'. ');"><sup>25</sup></span> to him. But what if he knew and subsequently forgot; he is liable for every Sabbath? Then instead of teaching, HE WHO KNOWS THE ESSENTIAL LAW OF THE SABBATH AND PERFORMS MANY LABOURS ON MANY SABBATHS, INCURS A SIN-OFFERING ON ACCOUNT OF EACH SABBATH: let him teach, He who knew and subsequently forgot, and how much more so this one? — What is meant by, HE WHO KNOWS THE ESSENTIAL LAW OF THE SABBATH? That he who knew the essential law of the Sabbath and forgot it.
Mishnah Sheviit
They said an important general principle with regard to the sabbatical year: anything that is food for man or beast, or a species [of plants] used for dyeing, and cannot be left growing in the soil, the law of the sabbatical year is applied both to it and to its money substitute and the law of removal applies both to it and to its money substitute. Which are they? The leaves of the wild luf, the leaf of ceterach, endives, leeks, portulaca, and netz hahalav. What is the food for cattle? Thorns and thistles. What is species of dyeing matter? Aftergrowths of woad and madder. The law of the seventh year applies both to them and to their money-substitutes and the law of removal applies both to them and to their money substitute.
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Mishnah Sheviit
And they said yet another general principle: Anything that is food for man or beast, or is used for dyeing, but can be left in the soil, the law of the sabbatical year applies both to it and to its money substitute but the law of removal does not apply to it or to its money substitute. Which are these? The root of wild luf, the root of ceterach, scolopendrium, the root of netz hahalav and buchreyah. What is the species of dyeing matter? Puah (madder) and reseda. The law of the sabbatical year applies both to them and to their money substitute but the law of removal does not apply to them or to their money substitute. Rabbi Meir says: their money substitutes must be removed by Rosh Hashanah. They said to him: since this law does not apply to the plants themselves, all the more so it does not apply to their money-substitute.
