Reference for Temurah 42:7

בשר ודם חדא מילתא היא

But what answer would you give according to the authority who holds that that from which it is derived is the deciding factor?<span class="x" onmousemove="('comment',' I.e., here the blood of the firstling, as we learn second tithe from it, and this belongs to the category of dedications.');">⁷</span>

Jastrow