The fires have been stoked ahead of the Gers' clash with Hibs this weekend.
The Hibs manager is quoted by the Daily Record as saying: “it’s very easy when you’ve got money to spend to bring in much better players” - when asked to describe the task facing Warburton at Rangers.
Predictably, the Gers gaffer disagreed and responded to the former Celtic defender in no uncertain terms:
“I would suggest any manager without the facts keeps his mouth shut," he said, in quotes published in the same report.
“So unless you have any facts that I don’t know then concentrate on your own team, not ours. I know what we’ve spent and it’s a complete fallacy.”
He added: “It must be easy to manage Man United and Real Madrid then I guess… It takes a lot more than that to wind me up that’s for sure.
“The key point for me is that we are very respectful of every club and every other manager.”
Warburton was speaking ahead of the two sides meeting this weekend and the latest war of words will only add to the intensity of the already crucial fixture.
Hibs are arguably Rangers’ main challengers for the title and the protracted Scott Allan saga has also served to worsen relations between the two clubs.
Sunday’s game will be a real indication of how far Rangers have come in the few months under the tutelage of Warburton, and could set the scene for how the rest of the campaign will go for both sides.