Nigeria’s Senate president, Bukola Saraki, has told the BBC Hausa service that he acquired 95% of his wealth before he entered politics.
He is currently under investigation by the Economic and Financial Commission (EFCC) on allegations of falsely declaring assets when he was governor of Kwara state.
Mr Saraki acknowledged that there was corruption in the country, but said his wealth was a result of coming from a blessed family and hard work.
He said he was confident that he would be cleared of the charges against him and he would continue to serve in public office.
The senator also said he had not evaded tax – an accusation highlighted in the Panama Papers.
His wife, Toyin Saraki, also appeared in those documents accused of registering a company offshore to buy a London property.