Reference for Shabbat 21:2
הָאֶבֶן שֶׁעַל פִּי הֶחָבִית, מַטָּהּ עַל צִדָּהּ וְהִיא נוֹפֶלֶת. הָיְתָה בֵין הֶחָבִיּוֹת, מַגְבִּיהַּ וּמַטָּהּ עַל צִדָּהּ וְהִיא נוֹפֶלֶת. מָעוֹת שֶׁעַל הַכַּר, נוֹעֵר אֶת הַכַּר וְהֵן נוֹפְלוֹת. הָיְתָה עָלָיו לַשְׁלֶשֶׁת, מְקַנְּחָהּ בִּסְמַרְטוּט. הָיְתָה שֶׁל עוֹר, נוֹתְנִין עָלֶיהָ מַיִם עַד שֶׁתִּכְלֶה:
If a stone were on the mouth of a (wine) jug, he inclines it (the jug) on its side [if he wishes to take some wine], and it (the stone) falls (of itself), [but he may not remove the stone with his hands]. If it (the jug with the stone on its mouth) were among the other jugs [and he was afraid that it might fall on them and break them, he picks it up [He picks up the whole jug, removes it to a different spot] and [there] inclines it on its side, and it falls. If money were on a mattress, he shakes out the mattress and it falls. [This, if he needs the mattress, but not its place. If he needs its place, he lifts the mattress together with the money. And this, only if he forgot the money on the mattress on Sabbath eve; but if he intentionally placed it there, the mattress becomes a basis for something forbidden, and it is forbidden to move it or to shake out the money that is on it.] If there were lishlesheth upon it [foul matter: spittle, excrement, dung], he cleans it off with a cloth, [but he may not spill water upon it, for mattresses generally are of cloth, and the soaking of cloth with water is its cleansing (which is forbidden on Shabbath)]. If it (the money) were (on a mattress) of leather, [which is not thus cleansed], he spills water upon it until it (the lishlesheth) is gone. [But he may not actually wash it, for since mattresses and pillows are generally soft, they are subject to washing if of soft leather. Simply placing water upon them, however, is not their cleansing.]