"The Presidency rejects the preposterous and malicious allegation by Mr Julius Malema, the leader of the Economic Freedom Fighters, that President Jacob Zuma carried R6 billion to Dubai for the Gupta family.
"Mr Malema's allegation has no basis in fact," Zuma's office said in a statement yesterday.
It noted that Zuma had recently concluded "successful visits" to the Kingdom of Saudi Arabia and the United Arab Emirates to strengthen bilateral trade and economic relations between South Africa and the two countries respectively.
Malema had alleged last Thursday that Zuma was recently in Dubai on a personal visit, dumping six billion rand (about USD 400 million) to the Gupta family.
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With huge business interests in South Africa, the wealthy Gupta family, which reportedly keeps close ties with 73-year- old Zuma, has been under fire recently for exerting undue influence on the South African government.
The Gupta family has rejected the accusation.
Zuma is also under pressure to step down after a damning ruling found him in violation of the Constitution.
Zuma, who has long denied wrongdoing for the work valued in 2014 at 216 million rand (then USD 24 million), on Friday apologised to the nation for the misuse of public funds.