Reference for Chullin 277:12

הקדיש חיה ואח"כ שחטה פטור מלכסות שחטה ואח"כ הקדישה חייב לכסות שכבר נתחייב בכסוי קודם שיבא לידי הקדש

if he slaughtered it and afterwards consecrated it, he is bound to cover up [the blood], since he was already bound to cover up [the blood] before it was consecrated!<span class="x" onmousemove="('comment',' And consecration does not set aside the existing obligation of covering up the blood; likewise it does not set aside the existing obligation of letting the dam go.');">⁷</span>

Jastrow

Jastrow

Jastrow

Jastrow