In audio meth by rick ross where is the beggining instrumental from?

Question by Rufus: In audio meth by rick ross where is the beggining instrumental from?
I feel the beggining instrumentals of this Audio Meth by Rick Ross and Raekwon are from a previous song and i can not figure it out can someone please help!!!

Best answer:

Answer by Danny
Mobb Deep Shook Ones Part 2

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