Zevachim 37A

מנין לכל הדמים שטעונים מתן דם ליסוד? תלמוד לומר: ״ודם זבחיך ישפך״. נפקא ליה מדרבי ⁠– דתניא, רבי אומר: ״והנשאר בדם ימצה״⁠ – שאין תלמוד לומר ״בדם״; ומה תלמוד לומר ״בדם״?

From where is it derived that all the blood that is left over from an offering after the requisite placement requires placement of blood on the base of the altar? The verse states: “And the blood of your offerings should be poured upon the altar of YHWH your God” (Deuteronomy 12:27). The Talmud answers: The tanna of the first baraita derives this from the verse cited by R' Yehuda HaNasi, as it is taught in a baraita: R' Yehuda HaNasi says with regard to a verse discussing a bird sin offering: “And the rest of the blood should be squeezed out at the base of the altar; it is a sin offering” (Leviticus 5:9). As there is no need for the verse to state “of the blood,” because the entire verse is talking about the blood, what is the meaning when the verse states “of the blood”?

לפי שלא למדנו אלא לניתנין מתן ארבע ⁠– שטעונין מתן דמים ליסוד; שאר דמים מנין? תלמוד לומר: ״והנשאר בדם ימצה״⁠ – שאין תלמוד לומר ״בדם״; ומה תלמוד לומר ״בדם״? לימד על כל הדמים, שטעונין מתן דמים ליסוד.

The baraita continues: Since we have learned only about those offerings whose blood is placed on the altar with 4 placements, i.e., outer sin offerings, that they require placement of the leftover blood on the base of the altar, from where is it derived that the same applies to the leftover blood of all the other offerings? The verse states: “And the rest of the blood should be squeezed out at the base of the altar; it is a sin offering” (Leviticus 5:9). Since there is no need for the verse to state “of the blood,” because the entire verse is talking about the blood, what is the meaning when the verse states “of the blood”? This teaches that all the leftover blood from all the offerings requires placement of blood on the base of the altar.