Where the father and mother or one of them survives the deceased and the latter has no posterity, they may in all cases exercise a right of reversion, up to the proportional shares fixed in the first paragraph of Article 738, on the property that the deceased had received from them by gift.
The value of the portion of the property subject to the right of return is deducted in priority from the inheritance rights of the father and mother.
When the right of reversion cannot be exercised in kind, it is enforced in value, within the limit of the succession assets.