Leviticus 19:6-10

It shall be eaten on the same day you offer it, and on the next day; but what remains until the third day shall be burned with fire.

So if it is eaten at all on the third day, it is unclean; it will not be accepted.

And everyone who eats it will bear the consequences for his guilt, because he has profaned the holy thing of the Lord; and that person shall be cut off from his people. Various Laws

‘Now when you reap the harvest of your land, you shall not reap to the very edges of your field, nor shall you gather the gleanings of your harvest.

And you shall not glean your vineyard, nor shall you gather the fallen grapes of your vineyard; you shall leave them for the needy and for the stranger. I am the Lord your God.