In fact, my computer searches could find no previous instances of this combination before (emphasis added):
[N]o constitutional provision prohibits the dissemination of general information on subjects of public interest to children or to adults (unless it is the Establishment or the Treason Clause).
The quote is from the panel’s order refusing rehearing nostra sponte (not sua sponte) in Fields v. Palmdale School District. I discussed the original panel decision in Fields here; it’s the case in which the Ninth Circuit held that distributing a survey with sex-related questions to public elementary school students didn’t violate the Constitution.