Shabbat 125B

זמורה שהיא קשורה בטפיח ⁠— ממלאין בה בשבת.

With regard to a vine branch that is tied to a pitcher, one may fill water with it on Shabbat because the branch became part of the vessel.

פקק החלון, רבי אליעזר אומר: בזמן שהוא קשור ותלוי ⁠— פוקקין בו, ואם לאו ⁠— אין פוקקין בו. וחכמים אומרים: בין כך ובין כך ⁠— פוקקין בו.

With regard to a window shutter, R' Eliezer says: When it is tied to and hanging from the window, i.e., it is not touching the ground, one may shutter the window with it, because it is not considered building; and if not, i.e., it is touching the ground, one may not shutter the window with it. And the Rabbis say: Both in this case and in that case one may shutter with it.

גמ׳ תנן התם: אבן שעל פי החבית ⁠— מטה על צידה, והיא נופלת. אמר רבה אמר רבי אמי אמר רבי יוחנן: לא שנו אלא בשוכח, אבל במניח ⁠— נעשה בסיס לדבר האסור. ורב יוסף אמר רבי אסי אמר רבי יוחנן: לא שנו אלא בשוכח, אבל במניח ⁠— נעשה כיסוי לחבית.

Talmud: We learned in a Mishnah there: In the case of a stone that is atop a jug and one wants to open the jug, he tilts the jug on its side and the stone falls. Rabba said that R' Ami said that R' Yoḥanan said: They only taught this in a case where one forgets the stone atop the jug; however, in a case where one places the stone atop the jug intentionally, the jug becomes a base for a prohibited object, and it is therefore prohibited to move the jug. And Rav Yosef said that R' Asi said that R' Yoḥanan said: They only taught this in a case where one forgets it; however, in a case where one places it there, the stone becomes a cover for the jug and it is permitted to use it like other jug covers.

אמר רבה, מותבינן אשמעתין: האבן שבקירויה אם ממלאין בה ואינה נופלת ⁠— ממלאין בה! ולא היא. התם, כיון דהדקה ⁠— שויה דופן.

Rabba said: We raise an objection to our halakha from the Mishnah: With regard to a stone that is in a gourd used to draw water, if they fill it with water and the stone does not fall, one may fill with it on Shabbat. Apparently, if the stone is designated for a purpose, it is no longer set-aside. He rejects the proof: And that is not so, as these cases are not comparable. There, in the case of the stone in the gourd, since one attached it to the gourd, he rendered the stone a wall of the gourd and part of the vessel, unlike in the case of the stone atop the jug.