Shevi’it 9:4-6

If food is growing in the fields in the seventh year, we can take it into our houses and keep it. But as soon as freely-growing food in the fields runs out, we can no longer keep it in our houses - food left in the house must be taken back into the fields and put out for anyone else who might like to come and take it.

This Law of Removal occupies most of the 9th chapter of Shevi'it, the tractate of the 7th year, and today's episode examines the exact dates when removal is required.