If it does not have a trace of blood upon it, then it is permitted. Rav Huna says: They taught that a bloodless hide is permitted only in a case where the gentile did not salt it, but if he salted it, it is prohibited, as I say: Its salting removed the trace of blood.

§ The mishna teaches that Rabban Shimon ben Gamliel says: A hide is prohibited only when the tear around its heart is circular, but if it is elongated, it is permitted. The Gemara notes: Rav Yosef says that Rav Yehuda says that Shmuel says: The halakha is in accordance with the opinion of Rabban Shimon ben Gamliel.

Abaye said to Rav Yosef: If one rules that the halakha is in accordance with the opinion of Rabban Shimon ben Gamliel, does that mean by inference that the Rabbis disagree, or perhaps there is no dispute and everyone accepts the opinion of Rabban Shimon ben Gamliel? Rav Yosef said to him: What difference is there to you whether or not the Rabbis disagree? In either case the halakha is in accordance with the opinion of Rabban Shimon ben Gamliel. Abaye said to him, invoking a folk expression with regard to one who learns without achieving understanding: Is it simply learn the lesson; let it be like a song? In other words, is it sufficient to simply parrot the halakhic ruling? No; it is necessary to examine an issue to understand it even if it does not yield a practical halakhic difference.

§ The mishna further teaches: Meat that enters the house of idol worship, before it is sacrificed, is permitted. The Gemara asks: Who is the tanna who taught this? Rabbi Ḥiyya bar Abba said that Rabbi Yoḥanan said: It is not in accordance with the opinion of Rabbi Elazar, as if one were to posit that it is in accordance with the opinion of Rabbi Elazar, this would be difficult: Doesn’t he say: When slaughtering an animal, a gentile’s unspecified intention is to use it for idol worship? Accordingly, Rabbi Elazar would disagree with the ruling of the mishna that meat entering a house of idol worship is permitted.

The mishna teaches: And meat that exits the house of idol worship is prohibited because it is considered as offerings to the dead, i.e., idols. The Gemara asks: What is the reason that it is classified as such? It is because it is impossible that it is not an idolatrous offering. The Gemara asks: Whose opinion does this reflect? It is the opinion of Rabbi Yehuda ben Beteira.

As it is taught in a baraita: Rabbi Yehuda ben Beteira says: From where is it derived that an idolatrous offering imparts ritual impurity by means of a tent to an individual or item situated together with it under the same structure, even if they do not come into direct contact? As it is stated: “They joined themselves also unto Baal of Peor, and ate the offerings to the dead” (Psalms 106:28). Just as a corpse imparts ritual impurity by means of a tent, so too idolatrous offerings impart ritual impurity by means of a tent. Similarly, Rabbi Yehuda ben Beteira would hold that just as it is prohibited to derive benefit from a corpse, so too it is prohibited to derive benefit from idolatrous offerings.

§ The mishna teaches: With regard to those going to a festival of idolatry, it is prohibited to engage with them in business. The Gemara notes that Shmuel says: In the case of a gentile who goes to a festival of idolatry, if he is on his way to the festival it is prohibited to engage in business with him, as he subsequently goes and offers thanks before the object of idol worship. Upon his return it is permitted, as what was, was, i.e., he has already finished his worship, and refraining from engaging in business with the gentile at this stage will accomplish nothing.

Conversely, with regard to a Jew who goes to a festival of idolatry, if he is on his way to the festival it is permitted to engage in business with him, as perhaps he will retract from his plan and will not go. Upon his return, it is prohibited, since