Judge Mahmoud Kamel El-Rashidi postponed the trial until June 8 so he could review 55,000 pages of documentation, Ahram Online reported.
Mubarak's 2012 conviction for failing to protect unarmed protesters during the 2011 uprising that led to his ouster was thrown out in January over technical issues.
Mubarak's two sons, his former interior minister and six former ministerial aides also are receiving new trials. They all face charges of killing protesters, illicit gains and exporting natural gas to Israel at below-market prices.
All defendants have denied the charges.
Lawyers for the plaintiffs are representing more than 1,700 people.
Some 850 people died in the January 2011 strife.
The initial retrial was halted in April after the judge recused himself. The case was then given to Rashidi.
Former interior minister Habib al-Adly and six of his aides are also being retried in the deaths of the protesters. Al-Adly also faces corruption charges, the BBC reported.
Mubarak's sons, Gamal and Alaa, are being retried on corruption charges on which they and their father were acquitted because of the expiration of the statute of limitations.
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