Zuma spoke after his party announced that it was seeking a re-run of the elections, saying it had submitted evidence to the Independent Electoral Commission proving its allegations of widespread irregularities.
Zuma's uMkhonto weSizwe Party has emerged as the third biggest political party, with 99% of the votes counted in South Africa's highly contested election. The governing African National Congress lost its parliamentary majority for the first time since it came into power after the end of apartheid in 1994.
Zuma did not elaborate on the details and nature of the vote-rigging allegations, but his party's officials said they include allegations that the electoral body’s IT system had been tampered with when it had technical glitches Saturday.
“We are going to need the time. Nobody must declare tomorrow, no. If that happens, people will provoke us because we know what they are doing," Zuma said.
“We are not guessing, we know. And why should they rush? I am hoping whoever is responsible is hearing what we are saying."
He said authorities should give political parties a chance to present their cases alleging vote irregularities.
In response to the allegations, the electoral body said it had received a total of 579 objections from voters and political parties. It said it would address all the complaints and it was ready to declare the official election results Sunday as scheduled.
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