The Ligue 1 club were taken over by Oryx Qatar Sports Investments back in 2011 and have since signed a number of the best players in the world for sizeable fees, including Zlatan Ibrahimovic, Thiago Silva and Edinson Cavani.
City Football Group (CFG), group that own the Manchester team, acquired 88.6% of Girona's shares at the end of August, along with the company owned by Pere Guardiola.
'The LFP firmly condemns the insulting comments from La Liga president Mr Javier Tebas concerning Paris St Germain, ' a statement read.
Manchester City also spent heavily in the last transfer window, lavishing an estimated £221 million (242 million euros, $288 million) on players although they offloaded several too.
Asked if he thought Girona were "cooking the books", the La Liga president added: "They were trying to but they didn't manage to do it". City loaned five players to Girona: Douglas Luiz, Marlos Moreno, Aleix García, Pablo Maffeo, and Olarenwaju Kayode.
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However, the second-year running back is free to play against the New York Giants this weekend with the consent of the league . Henderson also upheld the six-game suspension Tuesday following last week's hearing in NY .
Speaking at the Soccerex conference in Manchester, Tebas said PSG were "laughing at the system" and that Neymar had "peed from the diving board" into the swimming pool - the latter aquatic facility representing Spanish football in an unusually coarse metaphor.
Citing Monday's statement by European football's governing body confirming there was no FFP probe into City, a spokeswoman said: "We note the public comments made by Mr Tebas today and earlier this week".
The 55-year-old also warned that if he was not satisfied with UEFA's response to La Liga's concerns regarding the lavish spending of both PSG and Abu Dhabi-owned Manchester City then he would consider taking his case to Brussels and the European Union.
"They have not said they will never have one", Tebas said.
"These unworthy remarks are unbefitting an institution as respectable and successful as the Spanish league".
"We have seen the accounts of these clubs for the past five years, seeing income from gate tickets, TV rights and commercial income. That is impossible. That is financial doping".