BEIRUT — Lebanese Prime Minister Saad Hariri on Saturday said he will return to Lebanon to clarify his political position after abruptly resigning two weeks ago — while he was in Saudi Arabia — setting off fears of wider instability and raising questions about whether he had willingly quit. Hariri spoke from Paris where he met with French President Emmanuel Macron after arriving on a plane from the Saudi capital of Riyadh early Saturday. Lebanese officials had accused Saudi authorities of holding Hariri, a onetime political ally, hostage as part of an attempt to destabilize Lebanon.