Here's the Hendrix track. Check the main theme at 0:43.
Earlier I was checking out Right Said Fred's "I'm Too Sexy", which has an interpolation of the Hendrix track as the bridge (1:17 in this version):
Interestingly, the 2007 mix changes up the melody so that it doesn't reference "Third Stone".
Just a few minutes ago, I ran across Cozy Powell's "Dance With the Devil", and check it out a minute in:
There's the Hendrix melody.
Of course, this is all documented at whosampled.com, but I thought it was an interesting enough coincidence to mention here.