Tone Mason - The Throwback (2004) sampled The Impressions - We Must Be In Love (1970)

Artist:  Tone Mason (featuring Brassmunk, G Stokes and Graph Nobel)
Song:  The Throwback
Year:  2004
Album:  Not Officially Released

This song received a lot of radio play in Toronto back in 2004.

Artist:  J Dilla (featuring Pharoahe Monch)
Song:  Love
Year:  2006
Album:  The Shining

February always marks J Dilla's passing, so this song was just on the radio.

Artist:  The Impressions
Song:  We Must Be In Love
Year:  1970
Album:  Check Out Your Mind!

The Tone Mason sample is the easy one.  It's the two-bar loop at 0:04.  The loop is extended by another two bars for the introduction.  The J Dilla song is harder to break down.  The chorus is the two-bar sample at 1:52.  The rest of the song uses chopped pieces.  The easiest one to hear is the one-bar sample at 1:50 which is heard during the verses.