Reference for Taanit 52:12
רבי יוסי סבר מנחה דאיתה בכל יומא גזרו בה רבנן נעילה דליתה בכל יומא לא גזרו בה רבנן
R'Meir holds the view that the reason why on ordinary days the priests do not 'lift up their hands' at Minhah is because of the likelihood of intoxication,<span class="x" onmousemove="('comment',' The priest may likely be intoxicated. A priest in a state of intoxication may not officiate in the Temple. Cf, Lev. X, 9.');"><sup>9</sup></span> but on the days [cited above] the question of Intoxication does not arise.<span class="x" onmousemove="('comment',' I.e., on fast days. On Ma'amadoth and the Day of Atonement. The men of the Ma'amad fasted four fasts. Cf. infra 27b.');"><sup>10</sup></span> R'Judah takes the view that as drunkenness during [the time of] Shaharith and Musaf on ordinary days is not usual the Rabbis did not prohibit the lifting up of hands [at these services on fast-days also], whereas at [the time of] Minhah and Ne'ilah since on ordinary days drunkenness is quite a likely occurrence the Rabbis prohibited the 'lifting up of hands' [at these services even on fast-days].