Leviticus 22:28
And whether it be cow or ewe, you shall not kill both it and her young on the same day.
Deuteronomy 22:6-7
If a bird's nest happens to be before you in the way in any tree, or on the ground, whether they are young ones, or eggs, and the mother sitting upon the young, or upon the eggs, you shall not take the mother with the young:
Exodus 23:19
The first of the firstfruits of your land you shall bring into the house of the LORD your God. You shall not boil a kid in its mother's milk.
Exodus 34:26
The first of the firstfruits of your land you shall bring unto the house of the LORD your God. You shall not boil a kid in its mother's milk.
Deuteronomy 14:21
You shall not eat of anything that dies of itself: you shall give it unto the stranger that is in your gates, that he may eat it; or you may sell it unto a foreigner: for you are a holy people unto the LORD your God. you shall not boil a kid in its mother's milk.