ב מִילָה דּוֹחָה יוֹם טוֹב וְשַׁבָּת, בִּזְמַנָּהּ. אֲבָל שֶׁלֹּא בִּזְמַנָּהּ, אֵינָהּ דּוֹחָה. וַאֲפִלּוּ בִּזְמַנָּהּ, אֵינָהּ דּוֹחָה אֶלָּא הַמִּילָה עַצְמָהּ וּפְרִיעָה וּמְצִיצָה, וַאֲפִלּוּ פֵּרַשׁ, חוֹזֵר עַל צִיצִין הַמְּעַכְּבִין דְּהַיְנוּ אִם נִשְׁאַר מֵהָעוֹר עוֹר הַחוֹפֶה רֹב גָּבְהָהּ שֶׁל עֲטָרָה אֲפִלּוּ בְּמָקוֹם אֶחָד. וְעַל שֶׁאֵינָם מְעַכְּבִים, אִם לֹא פֵּרַשׁ, חוֹזֵר, וְאִם פֵּרַשׁ, אֵינוֹ חוֹזֵר. וְנוֹתְנִין עָלֶיהָ אִסְפַּלְנִית. הַגָּה: וּמֻתָּר לְטַלְטֵל הָאִזְמֵל לְאַחַר הַמִּילָה לְהַצְנִיעוֹ בְּחָצֵר הַמְעֹרָב, אַף עַל גַּב דְּאֵינוֹ צָרִיךְ לוֹ עוֹד בְּאוֹתוֹ שַׁבָּת, דְּהָא לֹא הֻקְצָה בֵּין הַשְּׁמָשׁוֹת מֵאַחַר דְּהָיָה צָרִיךְ לוֹ בְּאוֹתוֹ שַׁבָּת, כֵּן נִרְאֶה לִי. (הֶתֵּר טִלְטוּל כָּתוּב בתא"ו נָתִיב א', וְהַטַּעַם הוּא דִבְרֵי הַמְּחַבֵּר וּדְלֹא כמהרי"ל). אֲבָל מַכְשִׁירֶיהָ אֵינָם דּוֹחִים, כֵּיוָן שֶׁהָיָה אֶפְשָׁר לַעֲשׂוֹתָהּ מִבְּעוֹד יוֹם. וּלְפִיכָךְ אֵין עוֹשִׂין סַכִּין לִמֹּל בּוֹ, וְאֵין מְבִיאִין אוֹתוֹ מִמָּקוֹם לְמָקוֹם, וַאֲפִלּוּ לְהוֹצִיאוֹ מֵהַבַּיִת וְלַהֲבִיאוֹ דֶּרֶךְ גַּגִּין וַחֲצֵרוֹת וּמְבוֹאוֹת שֶׁלֹּא עֵרְבוּ. אֲבָל אִם שָׁכַח הַסַכִּין בְּגַג וְחָצֵר, מֻתָּר לַהֲבִיאוֹ מִזֶּה לָזֶה, אֲפִלּוּ עֵרְבוּ חֲצֵרוֹת עִם הַבָּתִּים.
2 Circumcision overrides the festival and Shabbat when done at the proper time, but not when done at an improper time. Even when done at the proper time, only the circumcision itself, the uncovering, and the tearing away of the remaining membrane are permitted to override Shabbat. Even if the mohel only partially removes the remaining membrane that covers most of the crown in one area, which renders it invalid, he may return to complete it. However, any remaining membrane that does not invalidate the circumcision - if he did not initially remove it, he may not go back, but they may apply an adhesive bandage. Rema: It is permitted to move the circumcision implements after the circumcision to store them in the courtyard shared by multiple dwellings, even though they are no longer needed that Shabbat, since they were not set aside as muktzeh before Shabbat, having been needed on that Shabbat. (This permissibility of moving them is written in the Toldot Adam VeChava, Pathway 1, and the reasoning is that of the author of the Shulchan Arukh, contrary to Maharil). However, the implements themselves do not override Shabbat since they could have been prepared beforehand. Therefore, one may not make a knife for circumcising, nor bring it from place to place, nor even take it out of the house [and bring it] through rooftops, courtyards and alleyways that were not included in the eiruv. However, if the knife was forgotten on a roof or courtyard, it is permitted to bring it from one to the other, even if the courtyards were combined with the houses in an eiruv.