A more thorough explanation:

FRUCTUS REI ALIENAE

Fructus rei alienae is a Latin term that means "fruits of another's property". It refers to the benefits or profits that come from someone else's property or estate.

• If you rent out a house that you own, the rent payments you receive are fructus rei alienae.
• If you pick fruit from your neighbor's tree without their permission, the fruit you take is fructus rei alienae.

These examples illustrate how fructus rei alienae refers to benefits or profits that come from someone else's property. In the first example, the rent payments come from a property that the person owns and is renting out to someone else. In the second example, the fruit comes from a tree that belongs to the person's neighbor, and the person is taking the fruit without permission.