Sources close to 50 tell TMZ, "50 doesn't personally know him however he heard that he was assaulted, as a result of the vlad and Jimmy Henchmen interview that mentioned 50. Mafi personally commented on 50's post, and when 50 saw he was in fact not injured he then deleted the post."
50 Cent made a thinly veiled threat to cut a guy so badly he'd need 150 stitches -- so claims the guy who says all he did was try to interview one of Fiddy's baby mamas.
Courtney "Mafi" Johnson says he booked Shaniqua Tompkins for an interview, and the next day 50 Cent posted a photo of Mafi on his Instagram with the menacing caption: "I have nothing to do with him getting a buck 50 in his face ... now the poor guy has to staple his face together."
Mafi says Fiddy deleted the post after 45 minutes, but the damage was done -- he called police out of concern for his safety and filed an incident report. Cops in Wisconsin, where Mafi lives, say they've looked into it and closed the case.
Mafi says he's meeting with a lawyer to consider his options.