Muscat, Oman (CNN) -- An Iranian prosecutor said Wednesday a trial will soon commence for three American hikers, one of whom, Sarah Shourd, was released on bail the day before from a Tehran prison.
Shourd, 32, was waiting with her mother in Muscat, Oman, to travel back home to the United States. Fellow Americans Shane Bauer, 28, who is Shourd's fiance, and their friend, Josh Fattal, 28, remain jailed in Tehran's notorious Evin Prison.
A source familiar with her situation said Shourd had various medical examinations Wednesday, in light of her medical conditions. She had a pre-existing gynecological problem, and her family says she now also has a lump in her breast, according to attorney Masoud Shafii.
Public prosecutor Abbas Jafari Dolatabadi told the official Islamic Republic News Agency that files for the three Americans have been sent to court and the trial will take place soon. He has ruled out the possibility of a pretrial release for the two American men.
Meanwhile, the mothers of Bauer and Fattal told CNN they remain hopeful their sons will go free soon.
"What we really want, of course, is their release," Laura Fattal said on CNN's "American Morning." "We're so happy Sarah's home -- but it's our turn to have our kids back with us."
The three Americans were detained after they allegedly strayed across an unmarked border into Iran while hiking in Iraq's Kurdistan region in July 2009. Iran accused the three of spying, a charge the United States and the hikers have denied.
Laura Fattal made a plea to Iranian President Mahmoud Ahmadinejad to end a situation that she says should have been avoided from the beginning.
"Iran knows they have three innocent hikers, one of which they released," she said.
Bauer's mother, Cindy Hickey, said her son and Shourd have a wedding to plan.
"I'm very happy Sarah's out," Hickey said. She's my daughter-in-law to be, but I want Shane home. I want Shane and Josh connected with their families."
Shourd landed in Muscat on a chartered flight from Tehran on Tuesday after Iranian authorities released her. Her bail -- set at $500,000 -- was posted by Omani sources, a senior Obama administration official told CNN.
Dolatabadi said the money, guaranteed by the Muscat National Bank, will be deposited in the Bank Melli of Iran in coming days once the religious Eid al-Fitr observance is over in Oman.
Shourd thanked those involved with her release.
"I've been waiting for this moment for a really long time, and I'm extremely grateful to be standing here," Shourd told reporters upon her arrival at the airport. "I want to begin by giving my deepest thanks to the sultan of Oman, Sultan Qaboos."
She also thanked Ahmadinejad and Ayatollah Ali Khamenei, Iran's supreme leader, and "everyone who has been a part of making this moment happen for me and for my family."
She said she would focus her efforts on securing the release of Bauer and Fattal.
"I can't enjoy my freedom without them," she said. "They should be standing here with me. They don't deserve to be in prison a minute longer than I do."
Prior to departing Tehran, she told reporters, "I just want to assure you that my commitment to truth will not change when I go back to my country and I will never say anything but the truth to the media, and I will not succumb to any pressure."
CNN's Nic Robertson in Muscat contributed to this report.