Exodus 22:30 References
30 "aYou shall do the same with your oxen and with your sheep. It shall be with its mother seven days; bon the eighth day you shall give it to Me.
b Genesis 17:12, Leviticus 12:3
12 "And every male among you who is aeight days old shall be circumcised throughout your generations, a servant who is born in the house or who is bought with money from any foreigner, who is not of your descendants.