Parashas Acharei Mos · Passuk 17:05
Chabad.org — English translation + Rashi
Torah Temima points to Temurah 12a.
English: If the mother is chullin and its offspring is shelamim, and one slaughters the mother outside, there is no liability under shechutei chutz, because “bring them to Hashem” does not apply.
Mixed status of mother and offspring
Liability tracks only animals that themselves are designated for Hashem; a chullin mother of a consecrated fetus is not covered.