The hip-hop mogul has been locked in a California court battle with Osama Ahmed Fahmy since 2007, after he alleged Jay Z's hit song violates his rights to his uncle Baligh Hamdy's composition, Khosara, Khosara, which was released in 1957.

Jay Z has maintained the song is protected under a previous licensing agreement made by producer Timbaland, but a trial date has been set for later this year (15) if the two parties cannot come to an agreement.

Fahmy is reportedly seeking the financial paperwork to show how much the rapper made during each concert he performed the track and claims the 99 Problems hitmaker's criminal past is relevant because he stole the track.

A judge has yet to rule on Jay Z's request, according to TMZ.com.

In 1999, Jay Z pleaded guilty to a misdemeanour in the stabbing of record executive Lance Rivera and was sentenced to three years probation.