BEIRUT (Reuters) - Lebanon could face economic sanctions from Arab countries or worse if Hezbollah does not stop meddling in regional conflicts, a Lebanese Sunni politician said on Friday.  Former Justice Minister Ashraf Rifi, who rose to prominence with vocal opposition to Shi ite Hezbollah, is closely aligned to the Saudi position in Lebanon and more hawkish than long-established Sunni leaders.   We can expect economic repercussions. At the political level too, at the level of our Lebanese-Arab relations. And it s open to all the possibilities, unfortunately,  he said. His comments to Reuters echo recent statements by Saad al-Hariri, who quit abruptly as Lebanese prime minister in a broadcast from Saudi Arabia two weeks ago.     The shock resignation thrust Lebanon into a regional rivalry between Riyadh and its allies against an Iranian bloc, which includes the Hezbollah militant group and political party.     Rifi said he has been in touch with Saudi officials recently over Lebanon s crisis and is familiar with Riyadh s thinking.       A political rival of Hariri, Rifi defeated a Hariri-backed list in local elections in the mostly Sunni city of Tripoli last year, though he lacks the premier s country-wide standing.   Today, Lebanese officials have a big responsibility. All the Lebanese officials have to be careful about good relations with the Arab world,  Rifi told Reuters.  There is no more leniency towards Hezbollah...using its illegitimate arsenal  in Middle East conflicts.   Lebanon s heavily armed Hezbollah, a part of the political fabric, wields great influence in the country. It also has sent thousands of fighters into Syria to battle alongside the Damascus government against mostly Sunni rebels and militants.  Lebanese politicians and bankers have said they fear Saudi Arabia corralling Arab allies to economically blockade Lebanon as they did with Qatar.      Lebanon cannot live without the Arab countries,  Rifi said.  We know how many Lebanese work in Saudi Arabia or in the Gulf and how much revenue they bring...to the Lebanese economy.       Up to 400,000 Lebanese work in the Gulf, and remittances flowing into the country are a vital source of cash to keep its economy afloat and the heavily-indebted government functioning. Political sources have said that potential sanctions include a ban on flights, visas, exports and transfer of remittances.    Saudi Arabia and its Arab allies have now drawn a line in the sand, Rifi said.  That there is no place for (Hezbollah) in (Lebanon s) future government, if it keeps choosing to be a security and military arm for Iran.  The Lebanese state will have to distance itself in  a real and practical  way from regional wars  so that we don t bear the repercussions of Hezbollah s acts,  he added.  In his resignation speech, Hariri said he feared assassination, railing against Iran and Hezbollah. A Sunni Muslim leader and long-time Saudi ally, Hariri has yet to return to Beirut. In his public comments after quitting, Hariri warned of possible Arab sanctions and a danger to the livelihoods of Lebanese in the Gulf. Hezbollah must stop intervening in regional conflicts, particularly Yemen, he said.   Lebanon s President Michel Aoun has called Hariri a Saudi hostage, refusing to accept his resignation unless he returns to Beirut, and stressing that the government still stands. Saudi Arabia and Hariri say he is a free man. Hariri became prime minister last year in a power-sharing deal that made Aoun, a Hezbollah political ally, president and his coalition government includes Hezbollah.  Rifi criticized Aoun s stance, as well as other Lebanese accusations that Riyadh forced Hariri to quit, as  surprising and unprecedented.  He considered Hariri s resignation constitutional and said Lebanon would have to form a new,  more balanced  government in the near future.  Rifi, a former police chief, resigned as justice minister in 2016 in protest at what he described as Hezbollah s dominant role. He had also heaped criticism on Hariri for nominating another Hezbollah ally to fill the vacant presidency.  From the moment the prime minister uttered his desire to quit, the government became a resigned one,  he said.