Jerusalem Talmud Terumot 4:6

משנה: רִבִּי לִיעֶזֶר אוֹמֵר תְּרוּמָה עוֹלָה בְּאֶחָד וּמֵאָה. רִבִּי יְהוֹשֻׁעַ אוֹמֵר בְּמֵאָה וְעוֹד. וְעוֹד זֶה אֵין לוֹ שִׁיעוּר. רִבִּי יוֹסֵי בֶּן מְשׁוּלָּם אוֹמֵר וְעוֹד קַב לְמֵאָה סְאָה שְׁתוּת לִמְדַמֵּעַ. MISHNAH: Rebbi Eliezer says, heave is lifted⁶²If heave falls into profane food it creates dema‘. If the amount of heave is small, it is possible to remove (“lift”) an amount equal to the heave and transfer the holiness to that food; the remainder of the food then returns to profane status. R. Eliezer states that in this respect “small” means at most 1 in 100 (1 part heave in 101 overall). R. Joshua requires that the amount be strictly less than 1 in 99+ε; ε>0 being arbitrarily small. R. Yose ben Meshullam requires that the amount of heave be at most 1 in 99.1666̄; if the amount of heave is one seah, the amount of profane grain has to be 99 seah plus one sixth of the amount causing the trouble, i. e., 99 1/6 seah. at the rate of one in 101. Rebbi Joshua says by 100 and more. This “and more” has no measure; Rebbi Yose ben Meshullam says “and more” is one qab per one hundred seah, one sixth of what makes dema‘⁶³Since 1 seah makes permanent dema‘ in 100 seot, one sixth is a qab. R. Joseph Caro (Kesef Mishneh on Maimonides Terumot 13:1) takes R. Yose ben Meshullam as being more restrictive than R. Eliezer; it is difficult to read this into the Mishnah..

הלכה: מְנַייִן שֶׁאֵין עוֹלִין. אָמַר רִבִּי יוֹנָה כְּתִיב מִכָּל־חֶלְבּוֹ אֶת מִקְדְּשׁוֹ מִמֶּנּוּ. דָּבָר שֶׁאַתְּ מֵרִים מִמֶּנוּ שֶׁאִם יִפּוֹל לְתוֹכוֹ מְקַדְּשׁוֹ. וְכַמָּה הוּא אֶחָד מִמֵּאָה. רִבִּי אֱלִיעֶזֶר אוֹמֵר מוֹסִיף סְאָה וּמַעֲלֶה. רִבִּי יְהוֹשֻׁעַ אוֹמֵר מוֹסִיף כָּל־שֶׁהוּא וּמַעֲלֶה. רִבִּי יוֹסֵי בֶּן הַמְשׁוּלָּם אוֹמֵר וְעוֹד קַב לְמֵאָה סְאָה שְׁתוּת לִמְדוּמָּע. וַהֲלָכָה כִדְבָרָיו. HALAKHAH: From where that they are not lifted? Rebbi Jonah said, it is written (Numbers.18.29">Num. 18:29): “From all its best its sanctifying part from it.” Something from which you lift it, so that if this falls into anything it sanctifies it⁶⁴This argument proves only that heave creates dema‘, not that dema‘ containing a minute amount of heave may be repaired. The same argument is in Sifry Num. 121.. How much is this? One in one hundred⁶⁵In Tosephta 5:8, the argument is made that the smallest amount called heave is heave of the tithe which is 10% of 10% or 1%, and that nothing less is called heave. The argument is rejected. Therefore, the determination of these limits is purely rabbinical.. Rebbi Eliezer says, one adds a seah and then lifts. Rebbi Joshua says one adds a small amount and lifts. Rebbi Yose ben Meshullam says “and more” is one qab per one hundred, one sixth of what makes dema‘; practice follows him⁶⁶Nevertheless, Maimonides (Terumot 13:1) decides according to R. Eliezer, probably because Mishnaiot Ḥallah 1:9, Orlah 2:1 are anonymous and follow R. Eliezer; in addition the Tosephta (5:8) quotes the ruling of R. Eliezer in the name of R. Yose, the most important teacher of the fourth generation, whose word is almost always to be followed..