Related for Beitzah 6:14
שהיה רבי מאיר אומר את שדרכו למנות מקדש וחכמים אומרים אינו מקדש אלא ששה דברים בלבד רבי עקיבא אומר שבעה ואלו הן אגוזי פרך ורמוני באדן וחביות סתומות וחלפי תרדין וקלחי כרוב ודלעת יונית רבי עקיבא מוסיף אף ככרות של בעל הבית
Since Rabbi Meir used to say, 'Whatever is its way to be counted is holy [and therefore forbidden, regardless of how many it is mixed up amongst]', and the Sages said: 'Only six things alone are holy [and thus forbidden in any size mixtures.' Rabbi Akiva says: 'Seven.' And these are they: Cracked nuts, pomegranates of Badan, closed jugs, beetroot shoots, cabbage stalks and Greek gourds. Rabbi Akiva adds also the loaves of a homeowner.
Tosefta Terumot
Rabbi Yehuda says, sweet pomegranates are forbidden in any quantity. How so? One of them [designated as terumah] fell inside ten thousand (רבוא) [of chullin], all are forbidden. [Even if] it fell from ten thousand inside another ten thousand, all are forbidden. Rabbi Shimon ben Yehuda says in the name of Rabbi Shimon, [if] one of them fell inside ten thousand, all are forbidden, [but if one] fell from ten thousand inside a third [container of ten thousand], and from the third [container] to another place, [at that point there is a] doubt whether they are forbidden because it is a a doubt regarding a forbidden mixture [which is treated leniently]. Said Rabbi Yehuda ben Bava (per MSS), "I am one of those fit to issue a ruling, and if they were to bring me beet shoots, I say, that they would be lifted up in [a proportion greater than] one hundred and one [to one], and not only that, the Beit Din should issue a ruling that in every case [involving any species, terumah mixed with chullin is] lifted up at one hundred and one [to one]."
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