Leviticus 22:28

Whether cow or ewe - it and its young, shall ye not slaughter on one day.

Deuteronomy 22:6-7

When a bird's-nest chanceth to be before thee, - in the way, in any tree or upon the ground, whether with nestlings or eggs, and, the mother, be sitting upon the nestlings or upon the eggs, thou shalt not take the mother upon the young;

Exodus 23:19

The beginning of the firstfruits of thy ground, shalt thou bring into the house of Yahweh thy God. Thou shalt not boil a kid in the milk of its dam.

Exodus 34:26

The beginning of the firstfruits of thy ground, shalt thou bring into the house of Yahweh, thy God, Thou shalt not boil a kid, in the milk of its dam.

Deuteronomy 14:21

Ye shall not eat any thing that dieth of itself: to the sojourner who is within thy gates, mayest thou give it and he may eat it or thou mayest sell it to a foreigner, for a holy people, art thou unto Yahweh thy God. Thou shalt not boil a kid, in the milk of its dam.

Treasury of Scripture Knowledge

Summary

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

Bible References

Ye shall not kill it

Exodus 23:19
The beginning of the firstfruits of thy ground, shalt thou bring into the house of Yahweh thy God. Thou shalt not boil a kid in the milk of its dam.
Exodus 34:26
The beginning of the firstfruits of thy ground, shalt thou bring into the house of Yahweh, thy God, Thou shalt not boil a kid, in the milk of its dam.
Deuteronomy 14:21
Ye shall not eat any thing that dieth of itself: to the sojourner who is within thy gates, mayest thou give it and he may eat it or thou mayest sell it to a foreigner, for a holy people, art thou unto Yahweh thy God. Thou shalt not boil a kid, in the milk of its dam.
Deuteronomy 22:6
When a bird's-nest chanceth to be before thee, - in the way, in any tree or upon the ground, whether with nestlings or eggs, and, the mother, be sitting upon the nestlings or upon the eggs, thou shalt not take the mother upon the young;