Did Jamie Foxx rip off Richard Pryor's bit about Africa?

Check out the similarity between these Foxx and Pryor bits on the way people smell in Africa:

Not the most original idea here so I can def see how Foxx would come up with it on his own. But then again, could Foxx really not know the Pryor bit at all? It's from "Live at the Sunset Strip," one of Pryor's biggest concert movies.