Ali added in a follow up tweet: "It's important to note that Bolling's summons does not include HuffPost - he is coming after me personally".
"Yashar Ali is a careful and meticulous reporter".
Bolling has yet to comment on the lawsuit.
First, there were reports by HuffPost that the Fox News host sent an "unsolicited photo of male genitalia" to three colleagues.
The report in question was written by Yashar Ali, a contributor to HuffPost.
'Not going to stop reporting on Eric Bolling or anyone else. "We stand by his reporting".
Bolling was a former commodities trader who worked as an on-air personality for CNBC before joining Fox Business when it launched in 2007. Among them was longtime conservative star Bill O'Reilly, who was ousted from Fox earlier this year after the New York Times revealed that he had settled sexual harassment claims with five women over the past 15 years.
21st Century Fox says it has made sweeping changes to its human resources practices as a result of the Ailes scandal.
Onetime host Gretchen Carlson sent shock waves throughout the media in July 2016 with a suit against the network and Ailes alleging she was terminated for "refusing Ailes' sexual advances".
'My only surprise is that it took this long for people to come forward about Bolling's behavior, which has been wildly inappropriate for years, ' she wrote. The network is also looking into a separate claim by frequent Fox News guest Caroline Heldman that Bolling sexually harassed her.