It's for the list of items being reviewed, not dismissal of the case.
"Judge Raymond Dearie, the court-appointed special master, said in a
filing Thursday that Trump's team needs to submit a sworn declaration saying if they believe the Justice Department included any items on their "inventory" of materials taken from Mar-a-Lago that were not actually seized during the search. The declaration must include "a list of any specific items set forth in the Detailed Property Inventory that Plaintiff asserts were not seized from the Premises on August 8, 2022," Dearie wrote in the order."
Direct link to the filing provided.