Exodus 22:30 in the World English Bible
You shall do likewise with your cattle and with your sheep. It shall be with its mother seven days, then on the eighth day you shall give it to me.
Context
29 Thou shalt not delay to offer the first of thy ripe fruits, and of thy liquors: the firstborn of thy sons shalt thou give unto me.
30 Likewise shalt thou do with thine oxen, and with thy sheep: seven days it shall be with his dam; on the eighth day thou shalt give it me.
31 And ye shall be holy men unto me: neither shall ye eat any flesh that is torn of beasts in the field; ye shall cast it to the dogs.