Reference for Chullin 279:7

אי טרפה בהדיא כתיב

If it is one that is trefah, but this is expressly stated<span class="x" onmousemove="('comment',' Cf. Lev. XXII, 8, which verse, according to Rabbinic tradition, refers to a clean bird that was rendered trefah.');">⁵</span>

Jastrow

Jastrow