A spokesman for the Supreme Court was unavailable Friday afternoon.
The five-man panel adjourned the case for judgments.
The SDP’s suit had also been thrown out at the Court of Appeal in Abuja.
Mr Mutfwang had urged the apex court to nullify the judgment of the Court of Appeal.
The statement comes as Nigerians intensify criticism of the Supreme Court over its decision to allow President Bola Tinubu to remain in office despite forging a school certificate.
The Zamfara Anti-thuggery Committee has begun clamping down on filling stations, markets and other business centres, rejecting the old naira notes.
The judge held that the Attorney-General failed to enter his defence in the suit, hence the court found the plaintiff’s claims “unchanged.”
