Zevahim 106: Outside of the Temple

Chapter 13! On offering sacrifices in locations that are not specified, and therefore also prohibited for sacrifices. The new mishnah raises the cases of offering outside the Temple. With a difference of approach between Rabbi Yossi HaGalilee and the sages. Plus, a ritually pure person who ate that which was impure would be exempt from a sin-offering, and the mishnah provides the explanation why. Also, the sources for all this in verses. Also, a focus on why this kind of offering outside of the Mishkan (or Temple) can't carry a "karet" punishment as derived from logic - though the Gemara first attempts to show how that logic would be upheld (by Rabbi Avin - and then knocked down by Rava).