The Temptations' "Funky Music Sho Nuf Turns Me On"

Yester-day I listened to the first disc of the Temptations' Anthology, so I'm listening to the second disc to-day.  I noticed something about "Funky Music Sho Nuf Turns Me On."  At about 1:07, there's a vocal phrase that stays on a single note for just over three whole measures, dips a little before rising again, and then trails off as it descends.  It sounded familiar to me because an almost-identical phrase is in Sly & the Family Stone's "Sing a Simple Song," which I listened to as part of their Anthology a few days ago.  In "Sing a Simple Song," it first appears at about 0:40.  The two phrases start on different notes, but the intervals are the same (they might start to diverge near the end though).

I lookt up the dates in the liner notes, and "Sing a Simple Song" is from 1969 where "Funky Music Sho Nuf Turns Me On" is from 1972, so it seems that the Temptations took that phrase from Sly & the Family Stone.