עַל־כֵּ֡ן לֹֽא־יֹאכְל֨וּ בְנֵֽי־יִשְׂרָאֵ֜ל אֶת־גִּ֣יד הַנָּשֶׁ֗ה אֲשֶׁר֙ עַל־כַּ֣ף הַיָּרֵ֔ךְ עַ֖ד הַיּ֣וֹם הַזֶּ֑ה כִּ֤י נָגַע֙ בְּכַף־יֶ֣רֶךְ יַעֲקֹ֔ב בְּגִ֖יד הַנָּשֶֽׁה׃
<span class="x" onmousemove="Show('perush','Este es el <b>183er Precepto Negativo</b> enumerado por el Rambam en el Prefacio a Mishné Torá, su “Compendio de la Ley Hebrea” para todo el Pueblo de Israel.',event);" onmouseout="Close();">Por esto no comen los hijos de Israel, hasta hoy día, del tendón que se contrajo</span>, el cual está en el encaje del muslo: porque tocó á Jacob este sitio de su muslo en el tendón que se contrajo.
Mishnah Chullin
[The prohibition of] the sciatic nerve is in force both within the land and outside it, both during the existence of the Temple and after it, in respect of both unconsecrated and consecrated [animals]. It applies to cattle and to wild animals, to the right and left hip. But it does not apply to a bird because it does not have a socket [on its hip]. It applies to a fetus. Rabbi Judah says: it does not apply to a fetus. And its [forbidden] fat is permitted. Butchers are not trustworthy with regard to the [removal of the] sciatic nerve, the words of Rabbi Meir. The sages say: they are trustworthy with regard to it as well as with regard to the [forbidden] fat.
Mishnah Chullin
It applies to clean animals but not to unclean. Rabbi Judah says, even to unclean animals. Rabbi Judah said: was not the sciatic nerve prohibited from the time of the sons of Jacob, and at that time unclean animals were still permitted to them? They replied, this law was ordained at Sinai but was written in its proper place.