via Instagram / Drake

J. Prince, the legendary founder of Rap-A-Lot Records, is warning his rivals to stopping messing around, when it comes to his family — specifically his son Jas Prince and Drake.

In a recently released diss, dubbed “Courtesy Message,” the Southern rap mogul calls out Lil Wayne, Birdman, Diddy and Suge Knight.

According to reports, the message follows a lawsuit filed by his son in 2012 against Young Money over Drake, whom he’s credited with discovering back in the MySpace era. Jas says he agreed to a deal with Weezy’s YM imprint, which gave him a cut of the rapper’s future earnings, but has never been paid. So now, he’s suing for $4 million.

However, Wayne’s manager Cortez Bryant claims Prince’s son chased him with a gun to force him into changing the language of the contract.

“In the court documents, the lawyer explains that a deal was agreed upon by all parties but then a year later out of the blue, Jas showed up to where Cortez was and presented a new deal that he drafted by himself, which gave him more money from Drake’s music,” said a report from AllHipHop.

As for Diddy being called out, Prince’s beef with the Bad Boy mogul stems from a recent incident in Miami where Diddy is rumored to have punched Drake.

In “Courtesy Message,” Prince says: “Puffy feeling like he can put his hands on my family, open the doors for his family to be touched. You reap what you sow.”

And finally, regarding Suge. The Compton rap mogul recently endorsed Wayne’s efforts to leave Cash Money Records, and during that same interview issued a warning to Drake, saying: “Drake, as long as you stay down with Wayne you don’t gotta worry about the last dance with the dancer… it comes.”

Prince didn’t like that, and offers words for Suge as well. “To Sugar Bear, all on Wayne’s nut sack. N*gga you know I ride with Drake. So, I accept any invitation you wanna bring. I’m your worst nightmare.”