Halakhah for Shabbat 312:10

ושמואל אמר הלכה כרבי שמעון ואף זעירי סבר הלכה כר"ש דתנן בהמה שמתה לא יזיזנה ממקומה ותרגמא זעירי בבהמת קדשים אבל בחולין שפיר דמי ואף רבי יוחנן אמר הלכה כר"ש ומי א"ר יוחנן הכי והא א"ר יוחנן הלכה כסתם משנה ותנן

<b><i>GEMARA</i></b>. It was stated: (Mnemonic: <i>'aReL SHaHaZ</i>).<span class="x" onmousemove="('comment',' V. p. 110, n. 1. '='Ulla; R = Rab; L = Levi; SH = SHemuel (Samuel); H = Johanan; Z = Ze'iri. ');">¹⁷</span> 'Ulla said; the <i>halachah</i> is as R. Judah. And Rab too holds [that] the <i>halachah</i> is as R. Judah; [this follows] from ship mattings,<span class="x" onmousemove="('comment',' V. supra 19b. ');">¹⁸</span> which Rab forbids while Samuel permits. And Levi too holds [that] the <i>halachah</i> is as R. Judah. For when a <i>terefah</i> was brought before him on a Festival,<span class="x" onmousemove="('comment',' I.e., when a doubt arose whether an animal was terefah (v. Glos.). ');">¹⁹</span> he would not inspect it save when he sat by a dunghill, for he said, perhaps it will not be found fit, in which case it is of no use even for dogs. But Samuel maintained: The <i>halachah</i> is as R. Simeon.<span class="x" onmousemove="('comment',' Who permits mukzeh. ');">²⁰</span> And Ze'iri too holds [that] the <i>halachah</i> is as R. Simeon, for we learnt: If an animal dies, it must not be moved from its place: and Ze'iri interpreted this as referring to a sacred animal,<span class="x" onmousemove="('comment',' I.e., one sanctified for a sacrifice. When it dies all benefit thereof is forbidden and it may not even be thrown to the dogs. Hence it is mukzeh on Festivals, with which this deals. ');">²¹</span> but in the case of an ordinary animal it is permitted.<span class="x" onmousemove="('comment',' It can be thrown to the dogs. and is therefore not mukzeh. ');">²²</span> R. Johanan too said, The <i>halachah</i> is as R. Simeon. Yet did R. Johanan say thus: Surely R. Johanan ruled, The <i>halachah</i> is as an anonymous Mishnah. and we learnt:

Kitzur Shulchan Arukh