Leviticus 11:38-40

³⁸But if water has been put on the seeds and then a carcass falls on them, the seeds must be thrown away.

³⁹If an animal whose meat you are permitted to eat dies, anyone who touches its carcass must not touch other people until that evening.

⁴⁰Anyone who eats some meat from that carcass must wash his clothes, and then he must not touch anyone until that evening.