Edward Zuma is being sued for R100 000 for "hate speech" over comments he made about Pravin Gordhan and Derek Hanekom.
"They must stop it...it hurts comrade Zuma."
Zuma has reportedly has until next Tuesday to resign.
The former tourism minister and the police boss had a heated exchange on Twitter on Tuesday evening.
In yet another open letter, the president's son has accused Pravin Gordhan of being beholden to white monopoly capital.
AAN7 Vs Derek Hannekom.
MPs asked National Treasury for official answers on how many staffers he has ... HuffPost found out.
The ANC in KZN wants a full report on the heckling incident before taking action.
“There seems to be a refusal or reluctance to appoint such a commission of inquiry," he said.
"I can confirm that I have started drafting my response letter to the secretary general."