NOPE.
What sources? Name one source that has corroborated on the record what happened regarding the actual fight or what Tupac may or may not have said.
The whole, "You from the South?" line that Pac supposedly uttered before he swung on Orlando that was first printed in an article Chuck Phillips wrote never had a source attributed to it. Nobody involved in the fight or that was there and is still alive to talk about has ever gone on record publicly about any details regarding it except Suge, and all he mentioned was vague recollections of how amped Pac was talking to him about it after the fact. Travon Lane is waiting on a payday to tell his story publicly, and no police interview details from people involved in the fight have ever been released publicly.
Like I said, anything about this fight outside of what everyone can see on that 6 seconds of video footage is 100% 2Pac folklore and speculation.
100 years from now cats will swear Pac lifted Thor's hammer, swung on Orlando and let him live only to send a message to Puffy, and lead the entire casino outdoors to safety because the building was on fire.