Zuma made the remarks after he held talks with the Zimbabwean leader on the sidelines of the World Economic Forum on Africa meeting in Durban.
Speaking as a panelist on the discussion titled, "Eye on fragile states", President Mugabe insisted that his country is not in any fragile state but among many with respective challenges.
Donald Kaberuka, former President of the African Development Bank Group, said: "Today we are talking about fragility in Africa". If anyone wants to call us fragile, they can.
"Whatever Mugabe was smoking is worse than human waste as it is also evident that after vomiting such nonsense he goes on to sleep whilst the WEF session is still on", said Chiyangwa. The president boasted that Zimbabwe is the most developed country in Africa after South Africa, but for most Zimbabweans this is hard to believe.
In 2016, Zimbabwe was the 16th most fragile state in the Fragile States Index out of 178 states surveyed.
3 killed after high tide submerges jetty in eastern India
On Thursday, the local residents had taken out a protest rally, demanding immediate renovation of several jetties at Bhadreswar. The jetty was located in Bhadreswar of Hooghly district, about 41 km north of Kolkata , the capital city of West Bengal.
According to Mugabe, "Zimbabwe have over 14 universities and our literacy rate is over 90 [%] - the highest in Africa". "Yes we have our problems but certainly we have achieved ... we have our resources, perhaps more resources than the average country in the world", he said. "To continue driving him beyond his physical and mental possibilities will make us even more of a caricature country and is not good for investment", said Shumba.
"We are now a basket case, thanks to decades of Zanu PF misrule, rampant corruption and unprecedented dereliction of governmental responsibility", Gutu went on.
After years of strained relations with the United States and most Western countries, Mugabe could not pass the chance to take potshots at his arch-enemies.
A "fragile" state is a low-income country characterised by weak capacity and/or weak legitimacy leaving citizens vulnerable to both natural and man-made shocks. We can't be fragile country.
"And Mugabe is responsible for this and he has to accept it", he said.