משנה: מְפִירִין נְדָרִים בַּשַּׁבָּת וְנִשְׁאָלִין נְדָרִים שֶׁהֵן לְצֹרֶךְ הַשַּׁבָּת. פּוֹקְקִין אֶת הַמָּאוֹר וּמוֹדְדִין אֶת הַמַּטְלִית וְאֶת הַמִּקְוֶה. מַעֲשֶׂה בִימֵי אָבִיו שֶׁל רִבִּי צָדוֹק וּבִימֵי אַבָּא שָׁאוּל בֶּן בָּטְנִית שֶׁפָּקְקוּ אֶת הַמָּאוֹר בְּטָפִיחַ וְקָֽשְׁרוּ אֶת הַמְּקֵידָּה בְגֶמִי לֵידַע אִם יֵשׁ בַּגִּיגִית פּוֹתֵחַ טֶפַח אִם לָאו. מִדִּבְרֵיהֶן לָמַדְנוּ שֶׁפּוֹקְקִין וּמוֹדְדִין וְקוֹשְׁרִין בַּשַּׁבָּת׃ MISHNAH: One dissolves vows on the Sabbath11Since the power of the father to dissolve the vows of his underage daughter or the husband to dissolve the vows of his wife ends with sundown of the day on which he is informed. and one may ask about vows12Since the power of a court or of a duly ordained Sage to revoke vows is not limited in time, they may be asked only about vows which interfere with the keeping of the Sabbath. if it is a need for the Sabbath. One plugs the skylight and measures a rag13Whether it has the minimal dimensions which make it susceptible to impurity. and a miqweh14Whether it contains the required 40 seˋah of water to purify by immersion.. It happened in the days of Rebbi Ṣadoq’s father and in the days of Abba Shaul ben Botnit, that they plugged the skylight with a jar and15Of a house where a corpse was lying in order to allow Cohanim to be on the roof, the skylight had to be closed. If it was built without a shutter, it may be temporarily closed by any object which may be moved on the Sabbath. tied a dish to bast to know whether a barrel17The explanation given by the Shabbat.157">Babli (157a/b) is that there was a corpse in one house, and a window between this and an adjacent house. An open window transmits tent-impurity if it is at least (1 hand-breadth)2. The window was partially blocked and it was impossible to measure the size of the open hole directly. They tied a dish to a flimsy piece of bast (so the knot should not be permanent), lowered it in front of the hole so a well defined part of it covered the hole, and then measured that part to know whether impurity was transferred to the second house. had a hand-breadth width opening or not17The explanation given by the Shabbat.157">Babli (157a/b) is that there was a corpse in one house, and a window between this and an adjacent house. An open window transmits tent-impurity if it is at least (1 hand-breadth)2. The window was partially blocked and it was impossible to measure the size of the open hole directly. They tied a dish to a flimsy piece of bast (so the knot should not be permanent), lowered it in front of the hole so a well defined part of it covered the hole, and then measured that part to know whether impurity was transferred to the second house.. From their words we infer that one plugs, and measures, and ties on the Sabbath.