Mucharraf Exit Brokered by 'Foreign Powers'
International and local powers were guarantors in Musharraf's resignation, Zardari said at an informal dinner meeting with journalists.
The president added that he was part of the discussions that eventually led to the former military ruler's resignation in August 2008.
"During those talks it was decided that after quitting power, Musharraf will play golf, but now he is doing other things," Zardari said.
Musharraf, who left Pakistan in mid-April and has been living in London for more than four months, has delivered a series of lectures commenting on Pakistani politics over the past few months.
Although Zardari did not name any countries that guaranteed immunity deal, Pakistan's main opposition party Muslim League - Nawaz (PML-N) has said the UK and the Saudi Arabia were guarantors in the deal, the BBC reported.