The original question is : did he refuse to play on any songs?
I don't think he did.
For example : He was there the first day they did Maxwell's Silver Hammer. In the Playboy interview he says he hated it but he doesn't say he didn't play on it. In fact he complains that Paul made the group play it over and over again. Maybe what he played wasn't used, but that's another question.
head in the clouds