Related for Yoma 59:9

במאי קא מיפלגי

CELL WITH THE EXCEPTION OF THIS ONE<span class="x" onmousemove="('comment',' The first one (mentioned in preceding Mishnah 28a) which he performed on profane ground at the Water-Gate.');">¹⁶</span> ALONE. - A LINEN SHEET WAS SPREAD BETWEEN HIM AND THE PEOPLE. <big><b>GEMARA: </b></big>Ben Zoma was asked: What is the purpose of this immersion?<span class="x" onmousemove="('comment',' For every man who wishes to enter the Temple Court.');">¹⁷</span> He answered: If one<span class="x" onmousemove="('comment',' The high priest, in the course of his five services on the Day of Atonement, moved from the inner to the outer court, both being sacred and having the special restriction attached, viz., that one who entered them in uncleanness incurred divine penalty of death.');">¹⁸</span> who moves from one holy place to another and from one place [the entering of] which [in uncleanness] involves kareth<span class="x" onmousemove="('comment',' V. Glos.');">¹⁹</span> to another place [the entering of] which [in uncleanness] involves kareth, requires immersion, how much more shall he require immersion who moves from profane ground into holy ground, and from a place [the entering of] which [in uncleanness] does not involve kareth, to a place [the entering of] which [in uncleanness] involves kareth! R'Judah said: It is only an immersion required for the sake of uniformity,<span class="x" onmousemove="('comment',' Lit., 'an attached immersion'. There is no Biblical obligation, but a Rabbinic 'fence' to assure a consciousness of any uncleanness attaching to him who entered the Temple Court.');">²⁰</span> so that he may remember if there is any uncleanness on him and abstain.<span class="x" onmousemove="('comment',' From entering the Temple Court.');">²¹</span> In what principle do they differ?

Tosefta Berakhot