Hart twice won the Premier League (2011-12 and 2013-14) and League Cup (2013-14 and 2015-16) as well as the FA Cup (2010-11) during his time at City.
The 39-year-old said because there was “nothing concrete”, it was matter of allowing things to “play out” and none of his achievements are in any way tarnished.
Hart added: “If Man City are found guilty, which I don’t think they are because of what Khaldoon said, then there’s conversations to be had.
“But right now I’m very confident and very, very calm. I’m very proud of what I’ve achieved and what I did with Manchester City and what we achieved as a team. And that doesn’t change. That doesn’t change until you tell me.”
City were accused of a wide range of rule breaches, centering around claims they inflated sponsorship revenue from connected companies and made other “off the books” payments to circumvent financial regulations.
Hart said it hadn’t “crossed my mind” to talk about the news with his former City team-mates because he “can’t get involved in the ifs, buts and maybes”.
“I did what I did. I lined up 11 v 11 and had it out on the pitch. I won some games, lost some games, drew some games, and I shook hands and I walked off,” he said.
“I know what I did, I know what we did, and I know how it happened. It didn’t feel like we were scheming or plotting.”