Study Guide

The Gemara cites a braita to locate the source for the halakha that all placements of the sin-offering blood performed in the inner sanctuary are essential. The braita's author treats the seven sprinklings as essential because they are treated as essential elsewhere - this statement is explained as referring to seven sprinklings in the rituals of the red heifer and the purification of a leper.

The ruling that the four placements are essential is derived from the phrase "and as such he should do." Why not derive them from the phrase "and he should do like he did," which is used to teach the seven sprinklings - why can't both be derived from the same verse? Rabbi Yirmiya and Abaye offer different answers.

The braita explains that the word "bull" mentioned first in Vayikra 4:20 refers to the bull of Yom Kippur. Rav Nachman bar Yitzchak teaches from this that the blood placements are essential. Rav Papa, however, maintains that the essential nature can be derived from the verses of Yom Kippur and therefore understands the verse as teaching three specific laws about dipping the finger in the blood, laws drawn from the sin offering of the kohen gadol. A braita is brought in support of Rav Papa's position.

Rabbi Yishmael held that the laws for the bull of Yom Kippur could be derived by kal va'chomer reasoning and therefore understood the "bull" in the verse to be referring to the communal sin offering.