Prosecutor Andre Wilsenach told the court that Zinde had been evaluated by a panel of psychiatrists from Weskoppies Hospital.
Their report on his mental state was ready, he said, and would be handed in to court in November, as the prosecution had only received it on Monday.
It is understood that the case will again be postponed and that Zinde will only go on trial some time next year.
Monday was the first time that Zinde appeared in the high court, as he was under observation at Weskoppies for several months.
Zinde, who had during his previous appearance shouted obscenities at people in court, appeared calm and neat and tidy on Monday, as he sat in the dock.
It is claimed that Zinde killed his 50-year-old mother at their home in Pecanwood Estate, Hartbeespoort Dam, near Brits.
Her body was found on June 11, 2016, inside the boot of her car.
Zinde was arrested soon after and sent for psychiatric evaluation.
He was initially released on R10 000 bail, but it was claimed that he then assaulted his father, Dr Lebohang Manoto, at his Walkerville home, south of Johannesburg.
Zinde's bail was revoked.
He was then sent for a second mental assessment following the alleged attack on his father.