Leviticus 22:28

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

Deuteronomy 22:6-7

If a bird's nest is encountered before thee in the way in any tree or on the ground, with young ones or eggs, and the mother sitting upon the young or upon the eggs, thou shalt not take the mother with the young.

Exodus 23:19

The first of the firstfruits of thy land thou shalt bring into the house of the LORD thy God. Thou shalt not boil a kid in his mother's milk.

Exodus 34:26

The first of the firstfruits of thy land thou shalt bring unto the house of the LORD thy God. Thou shalt not cook a kid in his mother's milk.

Deuteronomy 14:21

Ye shall not eat of any thing that died of itself; thou shalt give it unto the stranger that is in thy gates that he may eat it, or thou may sell it unto an alien; for thou art a holy people unto the LORD thy God. Thou shalt not cook a kid in his mother's milk.

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 first of the firstfruits of thy land thou shalt bring into the house of the LORD thy God. Thou shalt not boil a kid in his mother's milk.
Exodus 34:26
The first of the firstfruits of thy land thou shalt bring unto the house of the LORD thy God. Thou shalt not cook a kid in his mother's milk.
Deuteronomy 14:21
Ye shall not eat of any thing that died of itself; thou shalt give it unto the stranger that is in thy gates that he may eat it, or thou may sell it unto an alien; for thou art a holy people unto the LORD thy God. Thou shalt not cook a kid in his mother's milk.
Deuteronomy 22:6
If a bird's nest is encountered before thee in the way in any tree or on the ground, with young ones or eggs, and the mother sitting upon the young or upon the eggs, thou shalt not take the mother with the young.