Mr Musk, proprietor of social media platform X, previously Twitter, earlier appeared to counsel the battle could be held in an “epic location” in Italy.
He outlined streaming choices and an historical setting for the proposed occasion, claiming he had spoken to Italian Prime Minister Giorgia Meloni.
The rival tech bosses seemingly agreed to a brawl in June when Mr Musk tweeted that he was “up for a cage battle” with Mr Zuckerberg, who requested him to “ship me location”.
Posting on X on Friday, Mr Musk mentioned: “The battle will probably be managed by my and Zuck’s foundations (not UFC). Livestream will probably be on this platform and Meta.
“Every thing in digital camera body will probably be historical Rome, so nothing trendy in any respect.
“I spoke to the PM of Italy and Minister of Tradition. They’ve agreed on an epic location.”
Mr Musk added that the occasion would “pay respect to the previous and current of Italy”, and “all proceeds would go to veterans”.
Please assume something he says has not been agreed on
Responding to the claims, Mr Zuckerberg mentioned on Threads: “I like this sport and I’ve been able to battle for the reason that day Elon challenged me.
“If he ever agrees on an precise date, you’ll hear it from me. Till then, please assume something he says has not been agreed on.
“Not holding my breath for Elon, however I’ll share particulars on my subsequent battle after I’m prepared.
“Once I compete, I wish to do it in a means that places a highlight on the elite athletes on the prime of the sport.
“You do this by working with skilled orgs just like the UFC or ONE to drag this off effectively and create a terrific card.”
Tensions have been excessive between the 2 tech billionaires’ corporations after the launch of Threads, a text-based dialog app, by Meta in July.
Twitter despatched a cease-and-desist letter to Mr Zuckerberg after the launch, claiming Meta had made “illegal misappropriation of Twitter’s commerce secrets and techniques and different mental property”.
UK former prime minister Boris Johnson weighed in on the potential bout, claiming he would again Mr Musk to win and suggesting it could be “greater than the Rumble within the Jungle” between Muhammad Ali and George Foreman in 1974.
Writing in his Each day Mail column and referring to an historical Greek sport, he added: “By the best way, if the Musk-Zuckerberg bout does go forward, I problem the winner to a Cumberland wrestling pankration. And as prize cash I suggest that the victor ought to obtain half the opposite’s annual earnings.”