Vital Kamerhe, the former chief of staff to Democratic Republic of Congo President Felix Tshisekedi, has returned to his residence after being granted provisional release.
His aide told local media that he was fine and had been reunited with his family.
For health reasons, Mr Kamerhe was granted provisional freedom.
His release was contingent on the payment of a bail of $500,000 (£377,000).
Mr Kamerhe was sentenced to 20 years in hard labor by the Gombe high court on June 20, last year in a case of misappropriation of public funds.
On appeal, his sentence was reduced to 13 years of hard labor in June 2021.
He is the country’s most senior politician to face corruption charges. His lawyer claimed that the trial was politically motivated.
Mr Kamerhe supported President Tshisekedi in the 2018 election, presumably in exchange for the president’s support in the 2023 election.