"Yes, he is using machines to breathe," clan member Napilisi Mandela told the newspaper after visiting Mandela. "It is bad, but what can we do."
A leading cleric earlier joined Mandela's family members at the hospital where he was listed in critical condition.
Archbishop Thabo Makgoba called for "a quiet night and a peaceful, perfect end" for the former leader, CNN reported Wednesday.
The anti-apartheid icon has been hospitalized in Pretoria since June 8 for a recurring lung infection.
"Former President Nelson Mandela's condition remains unchanged in hospital and doctors continue to do their best to insure his recovery, well-being and comfort," said a government statement issued Tuesday night.
"When it is his time, we wish his soul could just rest," said Kuda Nyahumzi, 36, "He spent so long in jail and struggling."
Well-wishers have hung balloons, stuffed animals and messages of support along a wall outside the hospital.
Mandela, whose 95th birthday is next month, was elected South Africa's first black president in 1994, four years after he was freed from prison.
Notable deaths of 2014 [PHOTOS]
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