Beitzah 31A

מתני׳ מביאין עצים מן השדה ⁠— מן המכונס, ומן הקרפף ⁠— אפילו מן המפוזר. איזהו קרפף ⁠— כל שסמוך לעיר, דברי רבי יהודה. רבי יוסי אומר: כל שנכנסין לו בפותחת, ואפילו בתוך תחום שבת.

Mishnah: One may bring wood chopped from a tree the previous day from an unfenced field, but only from that which has been gathered into a pile before the Festival for the purpose of using it for kindling. However, scattered wood is muktze and may not be handled. And if one brings wood from a karpef used for storage, he may bring even from the scattered wood, as it is considered a guarded courtyard rather than a field, and one does not remove even scattered items from his mind if they are stored inside such an enclosure. The Mishnah explains: What is a karpef? It is any enclosure that is near a city, but if it is far from a city, it is considered a field; this is the statement of R' Yehuda. R' Yosei says: Any fenced place into which one can enter only with a key is a karpef, even if it is located at a distance from a city, provided that it is within the Shabbat limit.

גמ׳ אמר רב יהודה אמר שמואל: אין מביאין עצים אלא מן המכונסין שבקרפף. והא אנן תנן: מן הקרפף ⁠— ואפילו מן המפוזרים! מתניתין יחידאה היא.

Talmud: Rav Yehuda said that Shmuel said: One may not bring wood except from the wood that was gathered in a karpef. The Talmud challenges: But didn’t we learn in the Mishnah: And from a karpef, even from scattered wood? The Talmud answers: The Mishnah follows an individual opinion.

דתניא, אמר רבי שמעון בן אלעזר: לא נחלקו בית שמאי ובית הלל על המפוזרים שבשדות ⁠— שאין מביאין, ועל המכונסין שבקרפף ⁠— שמביאין. על מה נחלקו ⁠— על המפוזרים שבקרפף ועל המכונסין שבשדות, שבית שמאי אומרים: לא יביא, ובית הלל אומרים: יביא.

One may not rely on it, as is clear from a different source that the majority view is otherwise, as it is taught in a baraita that R' Shimon ben Elazar said: Beit Shammai and Beit Hillel did not disagree with regard to wood scattered in fields that one may not bring it on a Festival to one’s house for kindling, nor with regard to wood gathered in a karpef that one may bring it. With regard to what did they disagree? It is with regard to scattered wood in a karpef and gathered wood in fields, as Beit Shammai say: He may not bring it, and Beit Hillel say: He may bring it. Although the lenient opinion with regard to gathered wood in a field is attributed to Beit Hillel, this is only according to the minority view of R' Shimon ben Elazar. However, most rabbis disagree and say that one may not bring wood from a field at all, even according to Beit Hillel.