The "constitutional case" was based on numerous complaints submitted by supporters, lawyers said.
There were no irregularities that could affect the outcome, the HRCM concluded from its election observation.
A commissioner has left the country after threats, EC chief Ahmed Shareef said.
The president was advised not to plunge the nation into chaos and unrest.
The elections body said a total of 423 complaints had been received by Thursday.
The ruling party wants voting complaints investigated.
The ruling party has alleged fraud in the presidential election.
Foreign governments are happy with the election outcome.
Rolling coverage of the Maldives presidential election.
Election law states that those in line by the time polls close are entitled to cast their vote.
The opposition candidate's office was raided on the eve of the election.
The raid came on the eve of a presidential election.
The Saturday roundup of news from the campaign trail.
Almost 6,000 Maldivians are registered to vote at embassies abroad.
There were no changes to the vote counting process, the elections body said.
The final roundup of news from the campaign trail.
The former president also said he was talking to the military's top brass.