וְגַ֛ם שֹׁל־תָּשֹׁ֥לּוּ לָ֖הּ מִן־הַצְּבָתִ֑ים וַעֲזַבְתֶּ֥ם וְלִקְּטָ֖ה וְלֹ֥א תִגְעֲרוּ־בָֽהּ׃
還要從小禾把中故意給她遺落一些，留下讓她拾取，不可責備她。»
Mishnah Moed Katan
A man may bring his produce indoors for fear of thieves and withdraw his flax from a soaking pool to prevent it spoiling, as long as he doesn’t intend to do this work during the festival. And all those who deliberately intended to do their work on the festival, they must leave it to spoil.