The Special One will reunite with the Red Devils when his new club Fenerbahce entertain United in the Europa League on Thursday (24.10.24) and claimed that he could still be entitled to a title-winning bonus from the 2017/2018 season should Manchester City be found guilty of breaking the Premier League's financial rules.
Mourinho's United team finished runners-up to City that season but the success at the Etihad Stadium has been thrown into question by the club's 115 charges for breaching the rules.
City have denied the allegations and a verdict is due early next year.
Mourinho said: "As you know, we won the Europa League [in 2017] and we finished second in the Premier League [in 2018].
"I think we still have a chance to win that league because maybe they punish Man City with points and maybe we win that league and then they have to pay me the bonus and give me the medal."
Mourinho praised United for keeping faith with coach Erik ten Hag but regrets that the same belief was not shown in him during his time at Old Trafford.
The Portuguese coach said: "I wish the best to Man United since the moment I left.
"I left with a good feeling to the club and with a good feeling to the fans. If things are not going amazingly well for them it's not something that makes me happy.
"It doesn't make sense for me to be thinking about what happened and what didn't happen.
"What happened for sure, because it's very objective, is they keep faith in the coach, they support the coach, the coach is staying season after season and that means stability, it means trust, and they are giving him conditions to keep developing his job. That was different in relation to me."