זְרַעְתֶּ֨ם הַרְבֵּ֜ה וְהָבֵ֣א מְעָ֗ט אָכ֤וֹל וְאֵין־לְשָׂבְעָה֙ שָׁת֣וֹ וְאֵין־לְשָׁכְרָ֔ה לָב֖וֹשׁ וְאֵין־לְחֹ֣ם ל֑וֹ וְהַ֨מִּשְׂתַּכֵּ֔ר מִשְׂתַּכֵּ֖ר אֶל־צְר֥וֹר נָקֽוּב׃ (פ)
너희가 많이 뿌릴지라도 수입이 적으며 먹을지라도 배부르지 못하며 마실지라도 흡족하지 못하며 입어도 따뜻하지 못하며 일꾼이 삯을 받아도 그것을 구멍 뚫어진 전대에 넣음이 되느니라
Mishnah Makhshirin
One who immersed himself in a river and then there was in front of him another river and he crossed it, the second [water] purifies the first [water]. If his fellow pushed him in during exercise or his beast [pushed him in], the second [water] purifies the first [water]. But if [he did it] out of playfulness, it comes under the law of ‘if water be put’.