Exclusive

The man at the center of the A$AP Rocky assault case -- the man who provoked the rapper and even attacked him before A$AP reluctantly snapped back -- was convicted of criminal assault in Sweden 3 years ago.

Mustafa Jafari, Rocky's alleged victim, was convicted of striking a man in his forehead and beating the victim's face back in 2016, when Jafari was 16 years old. It happened on the streets of Stockholm, the very place Jafari harassed and assaulted A$AP and his crew earlier this month.

Play video content TMZ.com

Jafari was prosecuted and convicted of assault, and his sentence ... 30 hours of community service. He was also ordered to pay his victim around $500 in cash.

Jafari was also convicted of 2 minor drug offenses ... one in November 2017 and the other in May 2018. He was ordered to pay a fine for both, but served no jail time.

As we reported, Jafari was the instigator in the A$AP Rocky incident -- he's the guy in the white shirt. Prosecutors have cleared him, claiming he was acting in self-defense.