The assembly’s speaker has yet to decide whether the latest ballot will be held in secret after the country’s top court ruled in June that secret votes may be held for motions of no confidence.
Zuma’s critics want the no-confidence vote to be anonymous hoping it will embolden lawmakers from his party to support his ouster by shielding them from pressure.
Zuma’s administration has been beset by scandals and criticised for failing to address serious economic problems, with calls for his resignation sharpening after he fired the finance minister in March, triggering a double downgrade of the country’s debt to “junk”.
On Sunday, however, police minister and head of the ANC’s sub-committee on organisation, Fikile Mbalula, described party lawmakers thinking of voting Zuma out as “suicide bombers”.
“Members of the ANC have no right to represent their own jackets in parliament. They represent the organisation. They are suicide bombers (if they vote against Zuma),” Mbalula told reporters at a media conference.
“The ANC will apply disciplinary procedures for those want to vote using their so-called conscience,” Mbalula said.