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.
a
Deuteronomy 15:19, Leviticus 22:27
Deuteronomy 15
19
"aYou shall consecrate to the Lord your God all the firstborn males that are born of your herd and of your flock; you shall not work with the firstborn of your herd, nor shear the firstborn of your flock.
Leviticus 22
27
"When an ox or a sheep or a goat is born, it shall remain aseven days with its mother, and from the eighth day on it shall be accepted as a sacrifice of an offering by fire to the Lord.