Fox is great for passing on spurious rumors about Clinton, and I think Hannity is a particularly egregious shill.  A Google search on this particular lie suggests Jones as the source.  I've found that most of the lies and conspiracy theories about the Clintons originate in or emanate from Breitbart, the de facto public relations arm of the white supremacist movement, and until recently the home office of Steve Bannon, the CEO of Trump's campaign.