Reference for Zevachim 176:15
<br><br><big><strong>הדרן עלך המזבח מקדש</strong></big><br><br>
But that is not so, for surely R'Joshua B'Levi said: For two things we find no atonement through sacrifices, but find atonement for them through something else,<span class="x" onmousemove="('comment',' Lit., 'from another place.'');"><sup>19</sup></span> and they are bloodshed and slander. Bloodshed [is atoned for] by the beheaded heifer,<span class="x" onmousemove="('comment',' V. Deut. XXI, 1-9.');"><sup>20</sup></span> while slander [is atoned for] by incense. For R'Hanania recited: How do we know that incense atones? Because it is said, And he put on the incense, and made atonement for the people.<span class="x" onmousemove="('comment',' Num. XVII, 12.');"><sup>21</sup></span> And the school of R'Ishmael taught [likewise]: For what does incense atone? For slander: let that which is done in secret<span class="x" onmousemove="('comment',' None was present when the incense was offered.');"><sup>22</sup></span> come and atone for an offence committed in secret.<span class="x" onmousemove="('comment',' Slander is first related in private and then it spreads.');"><sup>23</sup></span> Thus slander contradicts slander, and bloodshed contradicts bloodshed? - There is no difficulty: bloodshed does not contradict bloodshed: In the one case the murderer is known,<span class="x" onmousemove="('comment',' Then the coat makes atonement, so that the whole community should not be divinely punished.');"><sup>24</sup></span> in the other the murderer is unknown.<span class="x" onmousemove="('comment',' Then the beheaded heifer makes atonement.');"><sup>25</sup></span> If the murderer is known, he is liable to death?<span class="x" onmousemove="('comment',' And until he is executed the community is not forgiven.');"><sup>26</sup></span> -It means [where he committed murder] deliberately, but was not warned.<span class="x" onmousemove="('comment',' On 'warning, (hathra'ah) v. p. 372, n. 1. He could not be executed in that case.');"><sup>27</sup></span> Slander too does not contradict slander: Here it was done in secret;<span class="x" onmousemove="('comment',' Then the incense atones.');"><sup>28</sup></span> there it was done in public.<span class="x" onmousemove="('comment',' Then the robe atones.');"><sup>29</sup></span> [