If the donee has voluntarily alienated the immovable property which has been given him, or if he has permitted it to be seized and sold for the payment of his debts, or if it has been destroyed by his fault or negligence, he shall not be the less bound to make the collation of it, according to the value which the immovable would have had at the time of the opening of the succession, deducting expenses, as is provided in the foregoing Article.
La. C.C. § 1270