A spokesman for the South African president said he was "certain" Archbishop Desmond Tutu was invited to Mandela's funeral.
Spokesman Mac Maharaj said the Nobel laureate, who has preached at the funerals of most anti-apartheid funerals, was welcome.
Certainly he is invited. He's an important person.
Mr Tutu's daughter, the Reverend Mpho Tutu, said in a statement that her father had not been accredited as a clergyman at Mr Mandela's funeral, to be held in Mr Mandela's home village of Qunu. Mr Maharaj said no credentials were needed.
The issue highlights occasional frictions between Mr Tutu and the current government of President Jacob Zuma.
Two years ago, Mr Tutu, slammed the ANC-led government as "disgraceful" for not issuing a visa to the Dalai Lama. He said it was worse than the country's former oppressive white regime.
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