ט
צְדוֹקִי וּבַיְתּוּסִי, שְׁחִיטָתָן אֲסוּרָה, אֶלָּא אִם כֵּן שָׁחֲטוּ וַאֲחֵרִים עוֹמְדִים עַל גַּבֵּיהֶם וְגַם בָּדְקוּ לָהֶם סַכִּין
Seif 9
Saducees and Baiythiates (followers of Baiytus) what they slaughter is forbidden, however if they slaughter and an expert stood over them guiding them and they also checked the knife. (it is allowed).