In the Gulf he will meet King Salman of Saudi Arabia, Crown Prince Mohammed bin Salman of Saudi Arabia, Crown Prince Sheikh Mohammed bin Zayed Al Nahyan of Abu Dhabi, Saudi Foreign Minister Adel al-Jubeir, United Arab Emirates Foreign Minister Sheikh Abdullah bin Zayed Al Nahyan, Yemeni Vice President Ali Mohsen and Yemeni Foreign Minister Khaled Al Yamani.
In the phone call, which came shortly after Khashoggi's murder on October 2 inside the Saudi consulate in Istanbul, Mutreb instructed his superior in Arabic to "tell your boss" that the murder mission had been accomplished.
Maher Abdulaziz Mutreb, a security officer, made the call.
The CIA and other intelligence officials were set to brief Congress this week, and congressional leaders will press Haspel for her assessment of Crown Prince Mohammed's culpability.
In a statement on Monday, Saudi officials denied the crown prince had anything to do with Khashoggi's killing.
Sidestepping a question on whether the recordings could change Ottawa's relationship with Riyadh and have consequences, Trudeau said he was continuing to talk with allies about the investigation and accountability for those behind the murder.
His killing has prompted widespread condemnation, including from Trudeau himself, but the prime minister did not say how the recordings have affected his thoughts on repercussions for the Saudis.
Ankara's most damning evidence has come from audio recordings from inside the consulate which it is believed were obtained by Turkish intelligence officers who hacked the Saudi hit team's communications.
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U.S. CIA Director Gina Haspel flew to Ankara on October 22 to inspect Turkey's evidence surrounding the killing.
The media outlet wrote that it remains unclear which company Nader suggested, but he purportedly said that it was run by former British special operations personnel.
Turkish President Recep Tayyip Erdogan said that recordings related to the killing of Mr Khashoggi had been passed on to the UK, US, Saudi Arabia and other powers.
"The recordings are really appalling".
"Indeed when the Saudi intelligence officer listened to the recordings he was so shocked he said: 'This one must have taken heroin, only someone who takes heroin would do this'". "Only someone who took heroin would do it".
Trudeau did not provide details of what was on the recordings or whether they were from inside the consulate on the day Khashoggi was killed. 'We are waiting patiently'.
The kingdom insists that the heir to the Saudi throne was oblivious to the plot to kill Khashoggi and the botched cover-up. When asked if he had heard the recordings, Trudeau said no, but that members of Canadian intelligence had. Khashoggi said the prince's critics in Saudi Arabia would not dare to speak out for fear of reprisals.
Saudi officials characterize the killing as a rogue operation carried out by Saudi agents who exceeded their authority.