Reference for Menachot 54:17
מתקיף לה רב יוסף לרבי יהודה מדאל דוקא (אל נכח) נמי דוקא אלא דמקדש שני דלא הוו ארון וכפורת ה"נ דלא עביד הזאות
Now<span class="x" onmousemove="('comment',' The Gemara now proceeds to elaborate the answer proposed by R. Hisda supra that one Baraitha states the view of R. Judah and the other that of the Rabbis.');"><sup>19</sup></span> since R'Judah maintains that the expression 'towards the front of the mercy-seat' must be interpreted with exactness, similarly he would hold that the expression 'and he shall sprinkle towards the front' must also be interpreted exactly;<span class="x" onmousemove="('comment',' And therefore if the blood of the Red Cow was not sprinkled quite in the direction towards the front of the Holy of Holies, it is invalid.');"><sup>20</sup></span>