Prosecutors had sought a prison sentence for Rubiales in a case that sparked a debate in Spain about sexism in women's football and wider Spanish society.
The 47-year-old Luis Rubiales provoked worldwide outrage after he cupped Hermoso's head and gave her an unsolicited kiss after Spain beat England to win the 2023 Women's World Cup in Australia.
The succession of scandals to rock the RFEF began in August 2023 when Rubiales forcibly kissed Hermoso on the lips after Spain won the Women's World Cup in Australia.
Rubiales' return to Spain came two weeks after investigators searched 11 locations.
Spanish police on Wednesday briefly arrested disgraced ex-football chief Luis Rubiales in connection with an alleged graft scandal at the RFEF football federation when he was president.
Former Spanish football federation president Luis Rubiales must appear in court on Friday in connection with the investigation into his forcible kiss on Jenni Hermoso's lips after the Women's World Cup final.
Spain men's coach Luis de la Fuente said Monday he "respects" former football federation president Luis Rubiales' decision to resign after causing outrage by kissing a Women's World Cup player on the lips.
The already-suspended chief sent his resignation to the federation's interim president, he said in an open letter, and also explained his decision to eventually step down in a television interview.
Hermoso gave her testimony on Tuesday and the complaint will be processed "as soon as possible", the prosecutor added.
"The FIFA disciplinary committee informed Luis Rubiales, president of the Spanish Football Association, today that it is opening disciplinary proceedings against him based on the events that occurred during the final," world football's governing body said in a statement.
"What we saw was an unacceptable gesture... and the apology he made is insufficient," Sanchez told a news conference when asked about the controversy over the unsolicited kiss
Luis Rubiales, the president of the Spanish Football Federation (RFEF) on Monday apologised for kissing star player Jenni Hermoso on the lips after Spain won the Women's World Cup.
Spanish football federation president Luis Rubiales was heavily criticised on social media on Sunday for kissing player Jenni Hermoso on the lips during Spain's Women's World Cup celebrations in Sydney.
