A criminal court in Cairo has sentenced Salafist preacher Hazem Salah Abu-Ismail to one year in jail with hard labour for insulting the judiciary.
Abu-Ismail made the insulting comments during his ongoing trial for forgery. He insisted he would not recognise the court.
He was detained in July 2013, during the crackdown on Islamists following the ouster of president Mohamed Morsi, on charges of inciting violence that led to the death of nine protesters in Giza.
He was later accused of submitting forged documents about his mother's nationality in official papers submitted to the election committee before the 2012 presidential election.
Abu-Ismail, a lawyer and preacher with a wide following, was disqualified from the presidential race after reports emerged that his mother held a US passport.
The court adjourned his forgery trial until 22 January.