Don't think there's a Soul II Soul sample in there. Jazzie B is Wookie's mentor and Wookie did "What's Going On" which was a version of "Back To Life".
i knew about the mentor thing but i always thought that battle was a remake/coverof an old soul II soul track. not so much a sample
You're probably thinking of "What's Going On"? I may be wrong but I don't think "Battle" is a remake.