Sheikh Mansour has parted with more than £300million to fund the signings of players like Carlos Tevez, David Silva and Yaya Toure, who have helped put the club in the FA Cup final and dragged them to the brink of playing in Europe's premier club competition next term.
"The man from Abu Dhabi has got so much money, I mean, it isn't like money to him is it?" Redknapp said.
"That's the key. I know people in the right positions there (at City) who have said 'Well, the one thing we couldn't offer was Champions League football.'
"But they tell me they've got one or two players signed already who'll blow your brains out. I mean, that's where they're going.
"They aren't going to stop until they win the championship and even then the Champions League, are they?"