Talmud su Tohorot 2:8
הָאוֹכֵל אֹכֶל שֵׁנִי, לֹא יַעֲשֶׂה בְּבֵית הַבָּד. וְחֻלִּין שֶׁנַּעֲשׂוּ עַל גַּב קֹדֶשׁ, הֲרֵי אֵלּוּ כְחֻלִּין. רַבִּי אֶלְעָזָר בַּר רַבִּי צָדוֹק אוֹמֵר, הֲרֵי אֵלּוּ כִתְרוּמָה, לְטַמֵּא שְׁנַיִם וְלִפְסֹל אֶחָד:
Chi mangia cibi di secondo grado [impurità] non dovrebbe lavorare in un frantoio [poiché il suo corpo diventa di secondo grado, e quindi rende impuri i liquidi]. E i cibi non sacri che sono stati preparati con la severità dei cibi sacri seguono ancora le regole dei cibi non sacri [cioè a differenza dei cibi sacri, non possono essere resi di terzo grado da un'impurità di secondo grado, né sono resi di quarto grado da un terzo grado di impurità]. Rabbi Elazar bar Rabbi Tzadok dice: In realtà sono come teruma , in quanto [se toccano un'origine di impurità] due sono resi impuri [quelli resi di impurità di primo e secondo grado] e uno è invalidato [quello di terzo grado ; e non produce un quarto].
Jerusalem Talmud Niddah
In Babli and Tosephta it is stated that the impurity in effect should have been retroactive, that the ruling as given fits only extraordinary circumstances. One may assume that the Yerushalmi refers to a similar text and that Rav Ḥisda the Babylonian’s question really refers to this, that under normal circumstances the impurity of a menstruating woman without regular period should act retroactively on food prepared in purity outside of Jerusalem. that she missed for three periods and then had a period. When the case came before the Sages, they said that her timing is exact.” Are there sacrifices in Aitlo? But it must be food prepared in the purity of sacrifices36Profane food, eaten by people who insist that they adhere to strict standards of purity. While most of these, called “fellows”, observed the standards of heave (which recognizes three degrees of derivative impurity, cf. Introduction to Tractate Demay, p. 349; Demay 2:2, Note 137), some people adhered to standards of sacrifices which recognized four degrees (Mishnah Tahorot 2:5).! Is that not really profane food37Mishnah Tahorot 2:8 decrees that profane food prepared according to the standards of sacrifices is still profane, admitting only two degrees of derivative impurity. A minority opinion admits three degrees, but certainly not four. This may be a polemic against followers of sects similar to that of Qumran, whose MMT text seems to prescribe the purity of sacrifices for all members of the group of the select few.? Explain it if it was prepared in the purity of purifying water38The water to which ashes from the red cow were added and which purified from the impurity of the dead. This water had to be guarded even from touching sacrificial food, Mishnah Parah 10:6. The ashes were available in Palestine a long time after the destruction of the Temple, cf. Berakhot1:1, Note 3; it was not impossible for a priestly family to preserve the rules of this purifying process., since purifying water has more restrictive rules than sacrifices.