Offset brought Chris Brown's ex Rihanna into their 21 Savage-sparked beef.

Now Chris Brown is bringing in Offset's current Cardi B.  Here's what he wrote on Instagram:

"I PROMISE THE WORST THING IN THE WORLD IS WHEN A SINGING NIGG* GOT NIGG*S SCARED TO TO FADE. AND WHATS LAME IS NIGG** ALL IN MY COMMENTS WORRIED ABOUT ANOTHER NIGG*. ILL LEAVE THIS WHERE ITS AT! SO YOU JUST DANCE YA WAY OUT MY COMMENTS! Ima send ya girl flowers so she know I respect her. I’m disappointed in this nigg*, AS HIS FATHER I SHOULD HAVE BEEN THERE MORE IN HIS LIFE SO HE WOULDN’T COME OUT A LAME AZZ NIGG*!"

A source close to Cardi says she wasn't happy about Brown's post:

“Cardi B found Chris Brown’s Instagram post where he says he’s going to send her flowers so she knows he respects her, quite disrespectful,” the source said. “Cardi of course sides with Offset, however, she knows Offset has been working really hard to get to a better place with her and on their relationship as a whole and finds it really rude of Chris to post such a thing.”

The source continues:

"Cardi also doesn’t like that Offset is being spoken about,” the source said. “She finds the whole thing disrespectful. She’s already having a lot of emotions going into Grammy night that she didn’t really need to be dealing with this right now. She’s definitely been snuggling extra amounts with Kulture in the last 24 hours!”

Offset is also feeling disrespected by Chris:

“Offset also feels that Chris Brown took this too far but his comments involving Cardi as she has nothing to do with this,” the source said. “Cardi and kids are off limits in Offsets eyes, and he just found it crossing a line and disrespectful."

Here's the post that upset Cardi and Set so:

Don’t consider myself GANGSTA. BUT I PROMISE THE WORST THING IN THE WORLD IS WHEN A SINGING NIGGA GOT NIGGAS SCARED TO TO FADE. AND WHATS LAME IS NIGGAA ALL IN MY COMMENTS WORRIED ABOUT ANOTHER NIGGA. ILL LEAVE THIS WHERE ITS AT! SO YOU JUST DANCE YA WAY OUT MY COMMENTS! Ima send ya girl flowers so she know I respect her. I’m disappointed in this nigga, AS HIS FATHER I SHOULD HAVE BEEN THERE MORE IN HIS LIFE SO HE WOULDN’T COME OUT A LAME AZZ NIGGA! 🕺🏾💨🔥

A post shared by  CHRIS BROWN (@chrisbrownofficial) on Feb 9, 2019 at 9:58am PST