Reference for Chagigah 3:4
חֹמֶר בַּתְּרוּמָה, שֶׁבִּיהוּדָה נֶאֱמָנִים עַל טָהֳרַת יַיִן וְשֶׁמֶן כָּל יְמוֹת הַשָּׁנָה, וּבִשְׁעַת הַגִּתּוֹת וְהַבַּדִּים אַף עַל הַתְּרוּמָה. עָבְרוּ הַגִּתּוֹת וְהַבַּדִּים וְהֵבִיאוּ לוֹ חָבִית שֶׁל יַיִן שֶׁל תְּרוּמָה, לֹא יְקַבְּלֶנָּה מִמֶּנּוּ, אֲבָל מַנִּיחָהּ לַגַּת הַבָּאָה. וְאִם אָמַר לוֹ, הִפְרַשְׁתִּי לְתוֹכָהּ רְבִיעִית קֹדֶשׁ, נֶאֱמָן. כַּדֵּי יַיִן וְכַדֵּי שֶׁמֶן הַמְדֻמָּעוֹת, נֶאֱמָנִין עֲלֵיהֶם בִּשְׁעַת הַגִּתּוֹת וְהַבַּדִּים, וְקֹדֶם לַגִּתּוֹת שִׁבְעִים יוֹם:
A stringency of terumah: In Yehudah they are believed in respect to the cleanliness of wine and of oil all the days of the year. ["In Yehudah" (specifically) because a strip of the land of the Cuthi'im divided the Galil from Yehudah. And Jerusalem is in the land of Yehudah. So that it was impossible to bring kodesh from the land of the Galil to Yehudah, uncleanliness having been decreed upon the land of the nations. And even (the kodesh) of chaverim in the Galil could not be brought as libations. ("they are believed, etc.":) If an am ha'aretz said: "This wine is clean, and it is for libations; this oil is clean, and it is for meal-offerings," he was always believed; for because of the stringency of kodesh, he would be heedful and would not lie. But if he said: "This wine and oil is clean and is for terumah," he is not believed. For the interdict against the uncleanliness of terumah is not so severe in the eyes of an am ha'aretz, and we fear that he might be lying.] And at the wine-press and the olive-press, (they are) also (believed) in respect to terumah. [At the time of the grape harvest and of the squeezing of the olives in the olive-press, they are believed for terumah, too; for all men cleanse their vessels when they make wine and oil in order to separate terumah in cleanliness.] If the [times of] the wine-press and of the olive-press have passed, and he [an am ha'aretz] brings him [a Cohein chaver] a jug of terumah wine [or terumah oil, saying it is clean], he should not accept it from him [as being clean. For after the (time of the) wine-press and the olive-press he is not believed.] But he leaves it for the next wine-press. [The am ha'aretz who knows that after the (time of the) wine-press and the olive-press he is not believed leaves this jug for the next wine-press, at which time he gives it to the Cohein; for at that time he is believed in respect to it.] And if he (the am ha'aretz) says to him: "I have separated into it a revi'ith [of a log of wine] kodesh [i.e., for libations], he is believed [in respect to the entire jug. For since he is believed in respect to kodesh, he is also believed in respect to terumah.] Pitchers of wine and pitchers of oil which are medumaoth (intermixed) — they are believed concerning them at the time of the wine-press and of the olive-press, and before the olive-press, seventy days. [If one (an am ha'aretz) cleanses his tevel (untithed produce) for libations, and now there are (intermixed) chullin, terumah, and kodesh, and he comes to say about the pitchers, too, that they are clean, even though an am ha'aretz is not believed concerning pitchers, even at the time of the wine-press, now he is believed concerning the pitchers even seventy days before the time of the wine-press. For since he is believed in respect to kodesh, he is also believed in respect to terumah and pitchers. For it is demeaning to kodesh that the pitchers from which it is poured have a status of uncleanliness, when it (the kodesh) is offered (upon the altar). "Seventy days" — it being the custom to order and cleanse the vessels seventy days before the (time of the) wine-press.]