Avodah Zarah 47B

נידון מחצה על מחצה.

the area is treated as half and half with regard to withdrawing into his property before rebuilding the wall; he may build the wall 4 cubits from the middle of that space.

אבניו, עציו ועפרו ⁠— מטמאין כשרץ, שנאמר: ״שקץ תשקצנו״.

The stones of the fallen wall, its wood, and its dust, transmit impurity like a creeping animal, i.e., 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 be accursed like it; you should detest it [shakketz teshakketzennu], and you should abhor it; for it is a proscribed item” (Deuteronomy 7:26). The term shakketz is used in a different form, shekketz, with regard to creeping animals.

רבי עקיבא אומר: כנדה, שנאמר: ״תזרם כמו דוה צא תאמר לו״, מה נדה מטמאה במשא, אף עבודה זרה מטמאה במשא.

R' Akiva says: Those items transmit impurity like a menstruating woman, as it is stated: “You will put them far away as a menstruating woman; you should say to it: Go away” (Isaiah 30:22). Just as a menstruating woman transmits impurity by carrying, as one who moves a menstruating woman, even without touching her, becomes impure, so too, objects of idol worship transmit impurity by carrying.

גמ׳ והא קא מרווח לעבודה זרה! אמר רב חנינא מסורא: דעבד ליה בית הכסא.

Talmud: The Mishnah teaches that one must rebuild his wall at a distance from the house of idol worship. The Talmud asks: But how may one do so? Isn’t he creating more space for the house of idol worship? Rav Ḥanina of Sura said: This is not a problem, as he converts the empty space into a latrine.

והא בעי צניעותא! דעבד ליה בית הכסא דלילה.

Since the Mishnah teaches that no wall may be built in that space, the latrine is apparently not enclosed. The Talmud asks: But doesn’t a latrine need to be in a place of modesty? The Talmud answers: This is not a problem, as he converts it into a latrine for nighttime, when no one can see him.