Yoreh Deah Siman 267 Seif 2

 

ב כְּשֵׁם שֶׁמִּילַת הַבָּנִים דּוֹחָה אֶת הַשַּׁבָּת, כָּךְ מִילַת הָעֲבָדִים שֶׁהֵם נִמּוֹלִים לִשְׁמוֹנָה דּוֹחָה אֶת הַשַּׁבָּת, חוּץ מִיְלִיד בַּיִת וּמִקְנַת כֶּסֶף שֶׁלֹּא טָבְלָה אִמּוֹ עַד שֶׁיָּלְדָה, שֶׁאַף עַל פִּי שֶׁהֵם נִמּוֹלִים לִשְׁמוֹנָה אֵינָם דּוֹחִים אֶת הַשַּׁבָּת.

 

Seif 2

Just as the circumcision of sons supersedes the Shabbat, so too, the circumcision of

those slaves who are circumcised on the eighth day supersede Shabbat, with the exception of one born in your home and or purchased whose mother did not immerse herself until after she gave birth. Although such a slave is circumcised on the eighth day, his circumcision does not supersede Shabbat.