Cyril Ramaphosa thought the be of importance had to survive handled with "care and purpose".
"We know you absence this be of importance to survive finalised," he told a crowd marking 100 years since the birth of the country's at the outset black president, Nelson Mandela.
Mr Zuma is facing extensive corruption charges bearing in mind a riotous nine years in the sphere of power.
The African resident legislative body (ANC) says its resident Executive working group (NEC) yearn for join on Monday to decide Mr Zuma's opportunity.
The BBC's Africa Correspondent Andrew Harding says the NEC is likely to ask Mr Zuma to step down.
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A parallel NEC discussion was called inedible carry on week bearing in mind express talks concerning Mr Zuma and Mr Ramaphosa, who is the deputy president to the same degree well to the same degree the new to the job leader of the hang loose.
Six reasons why Zuma is under pressure
How South African speech has misused under Zuma
Mr Zuma has faced increasing pressure to give up since December, whilst Mr Ramaphosa replaced him to the same degree leader of the ruling African resident legislative body (ANC).
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Media captionThe Zuma presidency: Scandals and successes
In the sphere of a speech by the side of the event in the sphere of Cape Town, Mr Ramaphosa thought the key in goal of transition talks was to unite South Africans.
He additionally acknowledged the disunity inside the ANC but thought Mr Mandela's centenary time "offers us a new to the job beginning".
Cyril Ramaphosa - unionist to boss
Jacob Zuma - South Africa's troublesome leader
Urging South Africans to restore the standards Mr Mandela stood on behalf of, he called on behalf of an conclusion to corruption and thought folks who had stolen state assets would survive brought to justice.
"We ought to drive in sync to the same degree Madiba qualified us to shove back the frontiers of poverty, unemployment and inequality," he thought, using an alternative fame on behalf of Mr Mandela.
He additionally addressed the Cape Town hose emergency, which has seen residents narrow to using 50 litres a generation amid fears the city may well run banned of hose in the sphere of can.
11 cities nearly everyone likely to run banned of drinking hose
Drought-hit Cape Town rejoices by the side of pour
"If near still was a instant whilst we ought to survive working in sync, this hose emergency is the instant," he thought.
A amount of other regions in the sphere of the motherland were torment parallel hose shortages, he thought.
Linked Topics
Cyril Ramaphosa
Jacob Zuma
African resident legislative body
South Africa
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South Africa's Jacob Zuma may well give up inside days - ANC
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Cyril Ramaphosa - South African unionist to boss
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Jacob Zuma - troublesome leader
5 February 2018
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