Tuesday's court application says there is "strong suspicion" the two aides were involved in planning the killing.
Saudi Arabia has so far detained 21 people in connection and is seeking death penalties against five of them.
The Saudi embassy in Washington confirmed that Khalid had returned to the US, NBC said, while a Saudi official said he was unable to attend the funeral because of a plane delay.
Khashoggi, a U.S. resident, was murdered in the Saudi consulate in Istanbul, Turkey, on October 2.
Some of Trump's fellow Republicans have joined Democrats in blaming Saudi Crown Prince Mohammed bin Salman for Khashoggi's death and backing legislation that could respond by, among other things, ending U.S. support for Saudi-led war effort in Yemen and suspending weapons sales to the kingdom.
Trump has equivocated over who is to blame for the killing, frustrating senators who are now looking for ways to punish the longtime Middle East ally. It says Saudi Arabia should be held accountable for "contributing to the humanitarian crisis in Yemen, the blockade of Qatar, the jailing of political dissidents within Saudi Arabia, the use of force to intimidate rivals, and the abhorrent and unjustified killing of journalist Jamal Khashoggi".
The House hasn't indicated it plans to move forward with a similar debate.
But Graham said he would not support the joint resolution that would cut off military support to the Saudi-led coalition in Yemen.
But senator after senator leaving the Central Intelligence Agency briefing said there's no doubt that bin Salman was involved, adding that the United States can not ignore the matter.
The U.S. resident was critical of the Saudi regime.
Richard Shelby, R-Ala., the Appropriations Committee chairman, echoed that "all evidence points to that, that all this leads back to the crown prince". But others, such as Graham, favour a broader measure that ceases arms sales to Saudi Arabia and slaps sanctions against all those responsible, including the crown prince.
After that briefing, Graham threatened to withhold his vote on key legislation until he heard from Haspel. "I know there are going to be a lot of efforts to try to remove the underlying language and replace it with something weaker".
Trump touts trade war truce
A Chinese official told Reuters officials were "waiting for the leaders to return" before publicizing details. China trade war to the wider worldwide community as well", Rudd said.
O2 customers unable to get online
Mobile network O2 is experiencing problems which are affecting customers across the UK. Thousands of mobile phone users across Kent have lost their data service this morning.
India's highs and lows in Australia
India off-spinner Ravichandran Ashwin may remember a similar schooling the last time the Test team toured Australia in 2014/15. Hazlewood said that the prolific run-scorer would once again be at his best when the Test series gets underway on December 6.