Reference for Menachot 43:8
<big><strong>גמ׳</strong></big> תנן התם דם שנתערב במים אם יש בו מראית דם כשר נתערב ביין רואין אותו כאילו הוא מים נתערב בדם בהמה או בדם חיה רואין אותו כאילו הוא מים רבי יהודה אומר אין דם מבטל דם
If the blood [of a sacrifice] was mixed with water and it still has the appearance of blood, it is valid.<span class="x" onmousemove="('comment',' For sprinkling upon the altar.');"><sup>17</sup></span> If it was mixed with wine, it must be regarded as though it was water.<span class="x" onmousemove="('comment',' And if an equal quantity of water when mixed with this blood would not alter the appearance of the blood, it is valid.');"><sup>18</sup></span> If it was mixed with the blood of [unconsecrated] cattle or of a wild animal, it must be regarded as though it was water. R'Judah says, Blood cannot neutralize blood.<span class="x" onmousemove="('comment',' So that the blood of a sacrifice, even though mixed in a considerably larger quantity of unconsecrated blood, still retains its identity and sacred character, and the mixture is valid for sprinkling. For R. Judah is of the opinion that in a mixture of like kinds, either liquids with liquids or solids with solids, one element cannot neutralize the other, irrespective of the quantities of each.');"><sup>19</sup></span>