Joe Hart is offering no clues as to whether he will return to Manchester City at the end of the season or pursue a permanent deal with Birmingham having impressed during his loan spell at St Andrew's.
Hart joined Birmingham on a season-long loan deal in July and has played a prominent role in the club's surprise rise to eighth place in the Premier League, with his promising form provoking calls for his inclusion in England's World Cup plans.
"We've asked them and there is no chance,'' McLeish said. "Man City have said he's not for sale. To be fair that has always been the way as they said that in the summer. That has always been their stance."
From Hart's perspective, the player is reluctant to commit himself either way, although he has made clear that he is relishing his time with McLeish's upwardly-mobile side.
"I am really enjoying it at Birmingham. They are great people and a good club with great fans," Hart said. "Regarding my future, there is nothing I'd rule in or rule out. It's not anything I'm considering right now simply because I'm just enjoying what I'm doing.
"There is no hassle. There is no pressure and I'm on loan until the end of the season. That will never change, regardless of what anyone says. I'm going to be here until May."