That’s a lot a bull TB Horayaot 5

When the High Court of Israel, the Sanhedrin, issues an erroneous legal decision like declaring the forbidden fat called khalev (חֵלֶב) permitted and the majority of the Jews eat this forbidden fat based on that legal decision, then a special community sacrifice of a bull (פר העלם דבר של ציבור) is offered up based upon the verses “If it is the community leadership of Israel that has erred and the matter escapes the notice of the congregation, so that they do any of the things which by YHVH’s commandments ought not to be done, and they realize guilt— when the sin through which they incurred guilt becomes known, the congregation shall offer a bull of the herd as a sin offering, and bring it before the Tent of Meeting.” (Leviticus 4:13-14) This halakha only applies when the court approves a detail of the prohibition and not the entire prohibition.

On daf TB Horayot 5 there are three opinions who is obligated to bring this special sacrifice. Rabbi Meir holds that the court has to bring the פר העלם דבר של ציבור because it made the mistake. The people don’t have to bring the sacrifice because they were just following the legal decision of the court.

Rabbi Yehuda holds that each tribe is obligated to bring its own פר העלם דבר של ציבור because each tribe is described as a community, (kahal- קהל). Once one tribe is obligated all the tribes are obligated through the principle of drawing (geraira- גְרִירָה) i.e., a tribe that did not sin is drawn after a tribe that sinned and is liable to bring an offering.

Rabbi Shimon holds that each tribe that erroneously followed the wrong legal decision of the court and the court is obligated to bring the פר העלם דבר של ציבור. He doesn’t subscribe to the principle of drawing (geraira- גְרִירָה).