The phrase "documentation to substantiate" is correctly phrased and is perfectly usable in written English.
You can use it when you need to refer to a record of facts or other evidence that prove or support a claim. For example, "The defendant presented documentation to substantiate his alibi."
She didn't have the documentation to substantiate her claims, but her daughters now embodied the sentiment.
(5) Documentation to substantiate reasonable and necessary expenses paid by the covered veteran.
(2) The State must provide us with sufficient relevant information and documentation to substantiate its claim of reasonable cause.
In response to requests from a reporter from the blog Mediaite, a woman claiming to be Nikki Reid's mother provided documentation to substantiate her identity and her daughter's identity.
Representative Edward J. Markey, Democrat of Massachusetts and chairman of the House Energy and Environment Subcommittee, said Monday that he had sent a letter to Mr. Hayward requesting documentation to substantiate his claims.
As JPMorgan plowed through a glut of overdue credit card bills and other loans, authorities suspect, the bank deluged state courts with lawsuits that used faulty documentation to substantiate the amount owed by consumers.
Documentation is required to substantiate, and build your market.
Documentation is necessary to substantiate your participation in the program.
Under the program, police and first responders transport domestic violence victims to hospitals and family advocacy centers where forensic nurse examiners conduct a specialized medical-forensic examination and collect advanced photographic documentation, DNA, and other physical evidence to substantiate allegations of strangulation.
It pointed out that "no handwritten diary or day-to-day records were introduced," and "very little backup documentation of any kind" was brought in "to substantiate Ms. Stewart's testimony".
