5. Trust of immovable property
No trust in relation to immovable property is valid unless declared by a non-testamentary instrument in writing signed by the author of the trust or the trustee and registered, or by the will of the author of the trust or of the trustee.
Trust of movable property. -No trust in relation to movable property is valid unless declared as aforesaid, or unless the ownership of the property is transferred to the trustee.
These rules do not apply where they would operate to make a fraud.