Reference for Zevachim 15:4

אשכחן למצוה לעכב מנלן כדאמר רב הונא בריה דרב יהושע חטאת חטאתו הכא נמי חטאת חטאתו

[which teaches] that atonement must be [made] for the sake of the sin-offering.<span class="x" onmousemove="('comment',' Atonement consists in essence of the sprinkling. - Carrying the blood to the side of the Altar where it is sprinkled is included in receiving');">³</span>

Jastrow