Leviticus 22:28

And whether [the mother] is a cow or a sheep, you shall not kill both it and its young in one day.

Deuteronomy 22:6-7

“If you happen to come upon a bird’s nest along the road, in any tree or on the ground, with young ones or eggs, and the mother [bird] is sitting on the young or on the eggs, you shall not take the mother with the young.

Exodus 23:19

“You shall bring the choice first fruits of your ground into the house of the Lord your God.

“You shall not boil a young goat in its mother’s milk.

Exodus 34:26

“You shall bring the very first of the first fruits of your ground to the house of the Lord your God.

“You shall not boil a young goat in his mother’s milk [as some pagans do].”

Deuteronomy 14:21

“You shall not eat anything that dies on its own. You may give it to the stranger (resident alien, foreigner) who is in your [city] gates, so that he may eat it, or you may sell it to a foreigner [since they are not under God’s law], but you are a people holy (set apart) to the Lord your God. You shall not boil a young goat or a lamb in its 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
“You shall bring the choice first fruits of your ground into the house of the Lord your God.

“You shall not boil a young goat in its mother’s milk.
Exodus 34:26
“You shall bring the very first of the first fruits of your ground to the house of the Lord your God.

“You shall not boil a young goat in his mother’s milk [as some pagans do].”
Deuteronomy 14:21
“You shall not eat anything that dies on its own. You may give it to the stranger (resident alien, foreigner) who is in your [city] gates, so that he may eat it, or you may sell it to a foreigner [since they are not under God’s law], but you are a people holy (set apart) to the Lord your God. You shall not boil a young goat or a lamb in its mother’s milk.
Deuteronomy 22:6
“If you happen to come upon a bird’s nest along the road, in any tree or on the ground, with young ones or eggs, and the mother [bird] is sitting on the young or on the eggs, you shall not take the mother with the young.