רב ושמואל דאמרי תרוייהו מתניתין בתינוק שנשבה לבין הנכרים וגר שנתגייר לבין הנכרים אבל הכיר ולבסוף שכח חייב על כל שבת ושבת תנן השוכח עיקר שבת לאו מכלל דהויא ליה ידיעה מעיקרא לא מאי כל השוכח עיקר שבת דהיתה שכוח ממנו עיקרה של שבת
'is [all] gathered simultaneously' excludes the fig-tree;<span class="x" onmousemove="('comment',' Whose fruits do not all ripen at the same time. The same holds good of many other trees, which are likewise excluded.
');"><sup>21</sup></span> 'and is taken in to be stored' excludes vegetables.<span class="x" onmousemove="('comment',' Which must be consumed whilst fresh.
');"><sup>22</sup></span> Whereas in respect to tithes we learnt: A general principle was stated in respect to tithes: Whatever is a foodstuff, is guarded, and grows from the earth is subject to tithes; but we did not learn, 'is gathered simultaneously and is collected for storage.
Rashi on Shabbat
They teach in the Mishna: to exempt with only one sin offering. An infant who was captured: and who never knew anything about Shabbat. But one who was familiar [with Shabbat] and ended up forgetting: he is like one who forgets that the day is Shabbat while knowing the essence of Shabbat, and is obligated for each and every Shabbat. That it was forcibly forgotten from him: he never knew.
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Tosafot on Shabbat
A convert who converted among the Gentiles: before three [a beit din] and they did not inform him of the mitzvah of Shabbat; for if he had only converted by himself he would not be a convert (as they discuss in Yevamot 47b).
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Rashi on Shabbat
Let it teach "one who was familiar and ended up forgetting:" that he is obligated even though one can't declare that during the days in between [one Shabbat and the next] he had awareness to divide [one violation from the next]; and how much more so would one who does have awareness to divide [between one Shabbat and the next] [be obligated for each and every Shabbat he violated].
