I first heard both records on one of DJ Clue's "Hev. E. Components" series either part 1 or 2 back in 2001. Nas definitely helped 50 cent along the way early in his 50's career. They need to put together their differences mainly on 50's part and get in the studio together and make some new songs.
Download link : http://www.mediafire.com/?qdc9gfnp40txqtq
Here is the other record that was also on the Clue tape, this song is featuring Nature and 50 cent.
Download link :Who U Rep With