Related for Chullin 274:10
שש לכהן חמשה ואחד לו
Ulla said i name of R'Eleazar: Our Mishnah expressly says: WHATEVER.<span class="x" onmousemove="('comment',' Whatever quantity of wool the five sheep produce, even though only one sela' in all, it is subject to this law.');"><sup>5</sup></span>
Tosefta Peah
These are the things that have no set amount: the peah, the bikkurim, the r'iyah, charity, and learning Torah. Peah has a minimum amount but does not have a maximum amount. [If] one makes his entire field peah, it is not peah.
Ask RabbiBookmarkShareCopy