Leviticus 22:28

And whether it be cow or ewe, ye shall not kill it and her young both in one day.

Cross-reference

Deuteronomy 22:6 forbids taking a mother bird with her young — a direct parallel to the rule here against killing mother and offspring on the same day.

Exodus 23:19 prohibits boiling a young goat in its mother's milk — a parallel law that also protects the mother‑offspring bond.

Exodus 34:26 restates the ban on boiling a kid in its mother's milk — another compassionate law alongside the prohibition here.

Deuteronomy 22:7 commands releasing the mother when taking her young — a positive application of the same protective principle found here.