The 28-year-old has been linked with a move to a number of high profile clubs including Flamengo and his old side Santos.
But Gilvan de Souza has cooled speculation over his son's future by stating that he must respect his contract with the Serie A giants, which is not due to expire for another two years.
He told Marca Brazil: "Flamengo are another club who have been saying Robinho wants to join them.
"Gremio, Atletico Mineiro, Sao Paulo, Santos and now Flamengo have all spoken about the player, but it's all speculation.
"He has a contract with Milan until 2014."
And when asked by reporters if Robinho want to stay at the Rossoneri rather than move back to his native Brazil, he added: "There is no such thing as wanting. Contracts have to be respected."