Exodus 22:28-31 - Regulations Regarding Tribute And Holiness
28 Do not curse God. Do not curse a ruler of your people.
29 Do not delay the offering from your harvest and your vintage. Give the firstborn of your sons to me. 30 Do the same with your oxen and with your sheep. Its mother may keep it for seven days. On the eighth day give it to me.
31 You are to be my holy people. Do not eat any flesh torn to bits in the field. Throw it to the dogs.