Article 166

Unless the wife has been declared a non compos mentis or a spendthrift, or is under civil interdiction or is confined in a leprosarium, the husband cannot alienate or encumber any real property of the conjugal partnership without the wife's consent. If she refuses unreasonably to give her consent, the court may compel her to grant the same.

This article shall not apply to property acquired by the conjugal partnership before the effective date of this Code. (1413a)