Related for Chullin 271:58
הא דר' אלעאי והא דרבנן
[to terumah] is liable [to it], but what grows [on land in the possession of] one not subject<span class="x" onmousemove="('comment',' Sc. land in the possession of a gentile.');"><sup>41</sup></span>
Tosefta Terumot
We do not take terumah from produce [that is harvested] before it is one-third ripe (cf. Hallah 1:3). How do you know if it is one-third ripe or if not? If it is planted and something has sprouted, it is known that it one-third ripe. If it is planted and something has not sprouted, it is known that it is not one-third ripe.
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