Reference for Keritot 28:29

א"ר אבהו

But in which respect is it more comprehensive here?<span class="x" onmousemove="('comment',' I.e., the case mentioned by R. Jose in our Mishnah, and with reference to the prohibition concerning the father's wife. This prohibition does not add to those already in existence.');">¹⁶</span>

Jastrow