Deuteronomy 12:15
<05315> [whatsoever.]
ritually .... impure <02931> [the unclean.]
Of the propriety of eating clean animals there could be no question, but the blood must be poured out: yet there were cases when they might kill and eat in all their gates such as the roebuck and the hart, or all clean wild beasts; for these being taken in hunting, and frequently shot by arrows, their blood could not be poured out at the altar