Midrasch zu Wajikra 25:6

5) (Vayikra 25:6) ("And the resting of the land shall be for you to eat; for you and your man-servant and your maid-servant, and your hired man, and your sojourner who dwell with you.") "And the resting of the land shall be for you": From "the resting" (i.e., fruit from a field which "rested" from work on the seventh year) you may eat, but you may not eat from the "guarded." (see halachah 3 above). From here they ruled: A field which was improved (beyond what is permitted) — Beth Shammai say: Its fruits may not be eaten on shevi'ith (even if its fruits were made hefker), and Beth Hillel say: They may be eaten. Beth Shammai say: The fruits of shevi'ith (even if made hefker) are not to be eaten as a favor (to someone). Beth Hillel say: They may be eaten either way, (as a favor or not). R. Yehudah said: Reverse it — This is one of the lenient rulings of Beth Shammai and the (more) stringent rulings of Beth Hillel.

6) "for you": and not for others. "to eat": and not to bring therefrom meal-offerings and libations, (which are not eaten but consumed by fire). "for you and your man-servant and your maid-servant": What is the intent of this? Because it is written (Shemoth 23:11) "but the seventh year you shall let it rest and lie fallow that the poor of your people may eat," I might think that the fruits of shevi'ith may be eaten only by the poor alone. Whence do I derive that the rich, too, may eat? From "for you and your man-servant and your maid-servant." The owners, who are rich, are mentioned (i.e., "for you") and the man-servants and maid-servants are mentioned. Why, then, is it written "that the poor of your people may eat"? The poor may eat after the biur (the removal from the house of fruits of the shemitah period), but not the rich. These are the words of R. Yehudah. R. Yossi says: Both the poor and the rich may eat after the biur.

7) Variantly: "that the poor of your people may eat": What is fit for a man (is given) to a man (On shevi'ith food for men is not given to beasts, for this would be "wasting" it), and what is fit for a beast is given to a beast. "and your hired man and your sojourner": (even) gentiles, "who dwell with you": to include boarders.