This is reported by CNBC.
A guarantee not to leave is a written obligation of the ex-head of the crypto exchange to appear in court upon order.
The next hearing in the Bankman-Fried case will take place in New York on January 3.
On December 22, the founder of the bankrupt cryptocurrency exchange FTX flew to the United States after agreeing to extradition.
Bankman-Fried was detained in the Bahamas last week at the request of the United States.
After he agreed to be extradited to the United States, the Bahamas allowed him to be extradited to Washington.