Neil Warnock has claimed that Cardiff City owner Vincent Tan is not looking to sell the Championship club.
Earlier this week, a Daily Star report suggested that a 32-page brochure advertising the Bluebirds had been prepared by London-based WMG Advisors for potential investors.
However, Cardiff manager Warnock responded by telling BBC Sport: "I only had to speak to one person and that's Mehmet [Dalman, chairman], and Mehmet wouldn't tell me any lies.
"I trust him totally and [the sale speculation] was put to bed within half an hour. I think fans always doubt owners wherever they are.
"All I know is that since I've been here... [chief executive] Ken Choo and Vincent have been really supportive and I've got the players in that I want, so I've nothing but praise for them really."
Cardiff have signed winger Nathaniel Mendez-Laing, goalkeeper Neil Etheridge, striker Danny Ward and midfielders Loic Damour and Lee Tomlin this summer.