In the plea filed by Iqbal, it stated that after Sharif was disqualified as prime minister, he had started to speak negatively on courts. It also mentioned that he had uttered anti-judiciary comments at a rally at Kot Momin in Punjab province and at Punjab House in Lahore.
Maryam, on the other hand, criticised the country's judiciary.
The petitioner maintained that Sharif and Maryam's speeches amounted to a contempt of court, and therefore, a case should be registered against them.
The petition added that Sharif had criticised the country's judiciary for colluding with vested interests.
The Pakistan Supreme Court had earlier disqualified Sharif as the prime minister, after an inquiry into the 2016 Panama Papers which linked his family to offshore companies.
A five-member bench of the Supreme Court, on July 28, had directed the National Accountability Bureau (NAB) to file references against Sharif and his three children.
He blamed the country's highest court for his removal from the office and stated that the evidence found against him in the Panama Paper leaks case was "false and imaginary". (ANI)