"We gave the recordings, we gave them to Saudi Arabia, we gave them to Washington, to the Germans, to the French, to the English", he said in a televised speech.
On Monday, a Turkish official said Saudi Arabia sent a two-man "clean-up team" to erase evidence of Khashoggi's murder a week after he disappeared at the Saudi consulate.
The audio appears to have been obtained by the bugging of the Saudi consulate, which is in contravention of the Vienna Convention and therefore illegal under worldwide law.
Khashoggi's slaying has destroyed the image of Saudi Crown Prince Mohammed bin Salman (MBS), who is believed to have a key role in the assassination.
"The 15 people who came to Istanbul [from Saudi Arabia], who are also among 18 detained by Saudi authorities, surely know who killed Jamal Khashoggi and where his body is".
Sources told Al Jazeera on Saturday that Turkish police ended the search for Khashoggi's body, but that the criminal investigation into the Saudi journalist's murder will continue.
The news website said the Turkish prosecutor's office has reached the conclusion after investigators found traces of acid in the Saudi consul general's residence and the drains connected to it, in Istanbul.
"I'm unable to express my sorrow to learn about dissolving your body Jamal!"
Yasin Aktay, an advisor to Erdogan, suggested last week the body may have been dissolved in acid.
The heir to the Saudi throne denies he was aware of the plot to kill Khashoggi or the attempted cover-up.
Erdoğan also said on that he may meet U.S. President Donald Trump in Paris during the commemorations.
Khashoggi went missing on October 2 after entering the consulate to obtain documents for marriage procedures. "Saudi Arabia's government can disclose this by making these 15 people talk", Erdogan said.
- Magnificent England spin out Lankans in Galle
- Norwegian Warship Close To Sinking After Collision With Oil Tanker
- California wildfires force hundreds of thousands to evacuate, claim lives
- United will go toe-to-toe with City, says Mourinho
- Florida Recounts: How Recounts Work In Florida
- Boeing jet crash-lands at Guyana airport, 10 injured
- Malibu fire rages through coastal homes
- Kim Kardashian Forced to Evacuate Home Due to Wildfires in Calabasas
- England flanker ‘highly unlikely’ to face All Blacks
- Backstage at Victoria's Secret Fashion Show 2018 - Best Photos Revealed!