Reference for Chullin 2:5

הַשּׁוֹחֵט בְּהֵמָה חַיָּה וְעוֹף וְלֹא יָצָא מֵהֶן דָּם, כְּשֵׁרִים, וְנֶאֱכָלִים בְּיָדַיִם מְסֹאָבוֹת, לְפִי שֶׁלֹּא הֻכְשְׁרוּ בְדָם. רַבִּי שִׁמְעוֹן אוֹמֵר, הֻכְשְׁרוּ בַשְּׁחִיטָה:

When a domestic or wild animal or fowl was slaughtered, and no blood followed [the incision], it is Cashér, and may be eaten with unwashed hands; because the absence of blood rendered it unsusceptible of contracting and conveying pollution. R. Simeon saith, "The slaughtering rendered it susceptible."

Jastrow

Jastrow