La. Code Civ. Proc. art. 3002
The petition of the heirs for possession under Article 3001 shall include allegations as to: the competency of the petitioners; the date of death of the deceased, and all other facts on which the jurisdiction of the court is based; the facts showing that petitioners are the sole heirs of the deceased; and that the succession is relatively free of debt, as provided in Article 3001.
The petition of the surviving spouse in community for possession under Article 3001 shall include all of the above allegations except those relating to heirship; shall allege the facts showing that he is the surviving spouse in community; shall state what property belonged to the community; and if he claims the usufruct of any interest in the community property, shall allege the fact showing that he is entitled thereto.
The allegations of the petition for possession shall be verified by the affidavit of at least one of the petitioners.
La. C.P. § 3002