"in its threshing": This tells me only of its threshing. Whence do I derive (the same for) other labors? From "you shall not muzzle" — in any event. If so, why is it written "in its threshing"? Just as threshing is distinct in appertaining to what is the growth of the soil, uprooted from the ground, at the end of its processing, from which a laborer may eat while working in it — so, all thus characterized (is subsumed.)
R. Yossi b. R. Yehudah says: Just as threshing is distinct in that one works at it with his hands and feet, (so, all thus characterized is subsumed) — to exclude what is worked at with his hands and not with his feet or vice versa.