זְרַעְתֶּ֨ם הַרְבֵּ֜ה וְהָבֵ֣א מְעָ֗ט אָכ֤וֹל וְאֵין־לְשָׂבְעָה֙ שָׁת֣וֹ וְאֵין־לְשָׁכְרָ֔ה לָב֖וֹשׁ וְאֵין־לְחֹ֣ם ל֑וֹ וְהַ֨מִּשְׂתַּכֵּ֔ר מִשְׂתַּכֵּ֖ר אֶל־צְר֥וֹר נָקֽוּב׃ (פ)
Tendes semeado muito, e recolhido pouco; comeis, mas não vos fartais; bebeis, mas não vos saciais; vestis-vos, mas ninguém se aquece; e o que recebe salário, recebe-o para o meter num saco furado.
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’.