Al-Ja'fari said after meeting Grand Ayatollah Ali al-Sistani that the Shi'ite-led United Iraqi Alliance, which he represents, was elected by the people.
He said the formation of a new government faced "obstacles," but not insurmountable ones.
Al-Ja'fari said he hoped the formation of the government would not take as long as it did last time, when forming the government took three month.
He hopes to have a national-unity government that groups his alliance, Kurdish parties, and two Sunni groupings that won a total of 55 seats in the 15 December elections.
(AP)