Yago Riedijk, the Dutch husband of Shamima Begum, says the two should be able to return with their child to the Netherlands.
Riedijk and Begum got married in 2015, days after she arrived in territory controlled by the Islamic State in Syria. Begum, a British national, was 15. Riedijk was 23 and had joined the Islamic State, which is also known as Isis, in 2014.
Now, with the militant group's self-proclaimed "caliphate" crumbling and two of her three children dead, the 19-year-old Begum says she wants to return to Britain. But British Home Secretary Sajid Javid said last month that he would move to strip her of her British citizenship, although he later said that he would not render any individual stateless.
Begum had fled Britain four years ago to become an "Isis bride." In an interview with the BBC, Riedijk said, "We sat down and she seemed in a good state of mind. It was her own choice; she was the one who asked to look for a partner for her."
"Then I was invited and, yeah, she was very young and it might have been better for her to wait a bit, but she didn't - she chose to get married and I chose to marry her."