Shabbat 82B

היה שלו ושל עבודה זרה, נידון מחצה על מחצה. אבניו ועציו ועפריו מטמאים כשרץ, שנאמר: ״שקץ תשקצנו וגו׳״. רבי עקיבא אומר כנדה, שנאמר: ״תזרם כמו דוה״⁠ — מה נדה מטמאה במשא, אף עבודה זרה מטמאה במשא. אמר רבה: ״תזרם״ דאמר קרא, נכרינהו מינך כזר. ״צא תאמר לו״⁠ — הכנס אל תאמר לו.

If the wall stood upon ground that belonged to him and to the house of idolatry, the area is calculated as half and half as far as moving into his property before rebuilding the wall, and one may build the wall 4 cubits from the middle of the wall. Its stones and its wood and its dust from the house of idolatry transmit impurity like creeping animals, and by rabbinic decree, one who touches them becomes impure like one who touches a creeping animal, as it is stated: “And you should not bring an abomination into your house and become banned like it, you should utterly detest it [shaketz teshaketzenu] and you should utterly abhor it, for it is a banned object” (Deuteronomy 7:26). Shaketz is a term used with regard to creeping animals. R' Akiva says: Idolatry transmits impurity like a menstruating woman, as it is stated: “You will cast them away as you would a menstruating woman [dava]” (Isaiah 30:22). Just as a menstruating woman transmits impurity imparted by carrying, as one who moves a menstruating woman without touching her becomes impure, so too, idolatry transmits impurity imparted by carrying. Rabba said in explanation of that which the verse said: “You will cast them away”: Make them foreign to you like a stranger. The end of the same verse: “You will tell it, get out” means that under no circumstances can you say to it, come in.

ואמר רבה: במשא דכולי עלמא לא פליגי דמטמאה, דהא אתקש לנדה. כי פליגי באבן מסמא. רבי עקיבא סבר כנדה: מה נדה מטמאה באבן מסמא ⁠— אף עבודה זרה מטמאה באבן מסמא. ורבנן סברי כשרץ: מה שרץ לא מטמא באבן מסמא ⁠— אף עבודה זרה לא מטמאה באבן מסמא.

And to the essence of the dispute, Rabba said: With regard to impurity imparted by carrying, everyone agrees that idol worship transmits impurity, as it is juxtaposed to a menstruating woman in the verse. Where they argue, it is with regard to the halakha of a very heavy stone. There is a special law with regard to the ritual impurity of a zav and a menstruating woman. If they sit on an object, even if it is an object that cannot become ritually impure, and beneath that object is a vessel, even though the weight of the zav and the menstruating woman has no effect on the vessel, it becomes ritually impure. R' Akiva holds that the impurity of idolatry is like the impurity of a menstruating woman in all respects; just as a menstruating woman transmits impurity via a very heavy stone, so too, idolatry transmits impurity via a very heavy stone. And the Rabbis hold that in this regard, the impurity of idolatry is like the impurity of a creeping animal; just as a creeping animal does not transmit impurity via a very heavy stone, so too, idolatry does not transmit impurity via a very heavy stone.