"and flesh in the field, treifah ("torn"): This tells me only of the field. Whence do I derive (that a treifah is forbidden also) in the house? From (Leviticus 22:8) "Neveilah (carrion) and treifah he shall not eat." Treifah is likened to neveilah. Just as neveilah is forbidden both in the house and in the field, so, treifah. If so, why is "field" (specifically) written here? Scripture speaks of the common instance.