LOS ANGELES — A state judge has ordered O.J. Simpson to stop spending money that he received for his unpublished book, “If I Did It,” about the slayings of his ex-wife, Nicole Brown Simpson, and her friend, Ron Goldman.

Los Angeles County Superior Court Judge Gerald Rosenberg’s ruling on Wednesday extended a restraining order issued last month barring Mr. Simpson from spending any earnings from past deals, including books, films, and sports memorabilia.

The order, which was sought by Goldman’s father, initially did not apply to the advance Mr. Simpson received from the book-and-TV deal for “If I Did It” because Fred Goldman had filed a federal lawsuit over the funds. However, the federal lawsuit was dismissed January 24 by a judge in Los Angeles who said he had no jurisdiction over Mr. Simpson, who lives in Florida.

The new order will remain in effect until a February 20 hearing, in which Mr. Simpson’s attorneys must provide the former football star’s financial records if they want to ask the court to make an exemption on his spending.

“We dare him to provide a financial statement under oath,” said Goldman’s attorney, David J. Cook.

An after-hours message left for Mr. Simpson’s attorney, Yale Galanter, was not immediately returned. Mr. Simpson told the Associated Press in November that the advance had already been spent, some of it on tax obligations.

The ruling is the latest in a decade-long battle following a 1997 civil judgment against Mr. Simpson that held him liable for the deaths of Nicole Brown Simpson and Ron Goldman. Fred Goldman alleges Mr. Simpson is trying to avoid paying the $33.5 million judgment, which has ballooned to about $40 million with interest.

Mr. Simpson’s book, which was spiked in November by the publisher, reportedly described how he theoretically would have killed Nicole Brown Simpson and Ron Goldman.

Mr. Cook said the Goldman family remains concerned that Mr. Simpson is shopping another book deal.