A more thorough explanation:

RES ALIENARI PROHIBITA

Res alienari prohibita is a Latin term used in law to refer to a thing that cannot be sold or transferred to another person.

• Sacred religious artifacts
• Protected wildlife species
• Heritage buildings

These examples illustrate the definition of res alienari prohibita because they are all things that are considered too valuable or important to be sold or transferred to someone else. For example, sacred religious artifacts are often considered to be the property of a particular religious group and cannot be sold or given away. Similarly, protected wildlife species are protected by law and cannot be bought or sold as they are considered to be a part of the natural heritage of a country. Heritage buildings are also often protected by law and cannot be sold or transferred to someone who might damage or destroy them.