Shabbat 53B

דומיא דקמיע. שמע מינה.

similar to the case of an amulet worn for healing purposes. The Talmud concludes: Indeed, learn from it that this is the correct understanding.

אמר מר: ולא בקמיע אף על פי שהוא מומחה. והא אנן תנן: ולא בקמיע שאינו מומחה. הא מומחה ⁠— שפיר דמי! הכא נמי שאינו מומחה.

The Talmud further examines the baraita cited earlier. The Master said: Nor may an animal go out with an amulet on Shabbat, even if the amulet proved effective. The Talmud asks: Didn’t we learn in a Mishnah: One may not go out on Shabbat with an amulet that has not proved effective? By inference: If the amulet proved effective, he may well do so. The Talmud answers: Here too, it is referring to an amulet that has not proved effective.

והא ״אף על פי שהוא מומחה״ קתני! מומחה לאדם ואינו מומחה לבהמה. ומי איכא מומחה לאדם ולא הוי מומחה לבהמה? אין, אדם דאית ליה מזלא ⁠— מסייע ליה, בהמה דלית לה מזלא ⁠— לא מסייע לה.

The Talmud asks: Doesn’t the baraita teach: Even if the amulet proved effective? The Talmud answers: The baraita is referring to an amulet that proved effective for a person, and did not prove effective for an animal. The Talmud wonders: Is there an amulet that proved effective for a person and is not effective for an animal? Healing an animal should be easier than healing a person. The Talmud answers: Yes, an amulet aids a person, who is under the protection of an advocate angel [mazal]; however, it does not aid an animal, which is not under the protection of an advocate angel.

אי הכי, מאי ״זה חומר בבהמה מבאדם״? מי סברת אקמיע קאי? אסנדל קאי.

The Talmud poses a question: If so, that the baraita is referring to an amulet that did not prove effective for an animal, but if the amulet proved effective, the animal may indeed go out into the public domain with it; what is the meaning of the phrase in the Tosefta: And this is a stricture that applies to animals beyond the strictures that apply to people? The halakha is the same with regard to both people and animals. If the amulet has proven effective, even an animal may go out with it on Shabbat. If it has not proven effective, even a person may not go out with it. The Talmud responds: Do you hold that this statement is referring to an amulet? It is referring to a shoe; an animal may not go out with a shoe on Shabbat, but a person may.