Newcastle and Isak have traded formal statements with the striker insisting he was promised he could leave this summer - a claim denied by the club.
Jordan told talkSPORT: "I don’t doubt that Newcastle have understood that Alexander Isak would like to leave Newcastle if a very big football club comes in.
"What I would imagine is not clear and has never been said and it never will be named as to who it was said by.
"Because if you have the balls to turn around and say ‘I was told by’, name them.
"Name the person specifically and explicitly who told you that, irrespective of conditions, you can leave when it suits you, you can leave when another football club comes.
"He won’t do it, he can’t do it and I doubt that you’ll ever see the light of it and I hope that he can point his finger at somebody and make somebody accountable."
Jordan continued: "Newcastle’s statement, and not just because I’m a former football club owner, is probably more likely to be the position as it is, which is ‘we’ll welcome him back’.
"I’d be fining the backside of him quite frankly but the idea that Newcastle have agreed something, these players are running around now whenever they don’t get what they want, turning around and saying, ‘well, I understood this, I was given a gentleman’s agreement for that, I was given assurance of that’."