Journal of the History of Ideas
We show that four central aspects of Hume's account of cause were contained and available to him in the translation of Sextus Empiricus' "Outlines of Pyrrhonism" contained in Thomas Stanley's 1687 History of Philosophy.
Groarke, Leo and Solomon, Graham. (1991). Some Sources for Hume's Account of Cause. Journal of the History of Ideas, 52 (4), 645-663.