This decision comes after the king, Sultan Abdullah failed to establish who has majority support following the collapse of the ruling coalition.
Mr Mahathir had met the king earlier today. He said, the monarch couldn’t find a candidate with a clear majority to lead the nation after consulting all 222 lawmakers.
If the voting ends in an impasse, a snap election will be called.
A failed bid by Mahathir’s supporters to form a new government without his designated successor, Anwar Ibrahim and Mahathir’s shock resignation have led to the collapse of the ruling alliance and plunged the country into political limbo.