Well, I've done that twice with a single male rabbit and, for me, both times the rabbit became friendly with the chicken on the lowest end of the pecking order. It wasn't until the second time I did it that I realized just how friendly they were! Trust me when I tell you a male rabbit will "fall in love" with a hen. The second rabbit literally wore off the feathers on the poor hens back. So, I would have to say it is NOT a good idea.
Because of the male rabbits' reaction to hens, I would assume the other posts talking about the rooster harming the female rabbit would also be likely. If you had adequate room to have a pair of breeding rabbits it might work, but I'm willing to bet any resulting babies would be in jeopardy...especially if you have a rooster!
Bottom line: it's just not natural and much healthier for all to live with their own species.