Only those who at the time of the donor's death have a right to the legitime and their heirs and successors in interest may ask for the reduction or inofficious donations.
Those referred to in the preceding paragraph cannot renounce their right during the lifetime of the donor, either by express declaration, or by consenting to the donation.
The donees, devisees and legatees, who are not entitled to the legitime and the creditors of the deceased can neither ask for the reduction nor avail themselves thereof. (655a)