Rapper Pooh Shiesty has just been arrested over a shooting that went down at a Miami club … where cops say a security guard ended up getting shot in a dispute over money.

According to Miami-Dade County Corrections records … the rapper was taken into custody Tuesday around 2 PM on a warrant for his arrest for aggravated battery with a deadly weapon … a felony.

According to the police report, obtained by TMZ, Miami-Dade PD was called out to the King of Diamonds nightclub back on May 30 around 4 AM for a reported shooting.

Cops say witnesses told them security staff was escorting Pooh out of the building when, out of nowhere, there was an altercation between Pooh and security staff. Cops say the security manager told them the beef was over money that had apparently fallen out of Pooh’s pants.

It’s unclear how much, if any, money fell … but apparently, it was enough to set off Pooh ’cause cops say they were told the Memphis MC took out his gun and fired off a round toward the ground.

Cops say one of the security guards ended up getting hit in the right ankle and was taken to a hospital. By the time cops showed up at the scene, they say Pooh had already bounced.

There were rumors going around social media that someone jacked $40k from Pooh, but the rapper put those rumors to bed, saying on IG … “false allegations nothing never been took from me.”

But, according to cops … money is at the center of this particular incident, which resulted in one person getting shot.