Zuma was jailed in July after refusing to testify before corruption investigators, a move that sparked violent protests killing more than 350.
Judge K.E. Motojane ruled that the medical parole granted to Zuma last September was illegal.
He ruled that none of the periods that Zuma was on medical parole would count as time served for early release over his 15-month sentence for contempt of court.
Zuma was jailed on July 11 for failing to appear as ordered before the State Capture Commission of Inquiry, which is South African corruption slang.
Today’s ruling is a legal slap in the face for former correctional chief Arthur Fraser who released Zuma on medical parole, overturning the medical parole board that found Zuma was not eligible for a early release for health reasons.
Zuma and Fraser are ordered to pay the costs of the action brought by the Helen Suzman Foundation, the right-wing lobby group Afriforum and the official opposition party the Democratic Alliance.
AD Chief John Steenhuisen said: “We welcome the immediate revocation of Mr. Zuma’s medical parole, his return to correctional custody to serve the remainder of his sentence. , the prohibition against counting time spent on medical parole as time served and that he and Mr. Arthur Fraser pay all court costs. ”
“If we allow these to slip, we will seriously weaken the foundations of our constitutional democracy. We are greatly encouraged by the firm and unambiguous position taken by Judge KE Matojane in this regard, ”he said.
The Suzman Foundation said in its tweet that the ruling is a victory for the rule of law, although it is confident that Zuma will appeal the judgment.
Zuma supporters, meanwhile, have vowed to put their bodies at risk to prevent the former president from returning to prison.
The ANC played a direct role in the decision, he said on Twitter that corrections should release a development statement and are awaiting that statement.
The move raised security concerns as protests against Zuma’s imprisonment in July, which are widely believed to have resulted in sporadic opportunistic looting that ransacked buildings and caused billions of rand in losses to companies in the commercial capital Johannesburg and the home province of Zuma, KwaZulu / Natal.