The two girls made a 5,600km journey to Cologne where they were sheltered as refugees. After discovering that Nujeen was a fan of Barcelona FC - and had never attended a game - the club surprised her by arranging a visit to Spain and watch them play Celta Vigo.
Prior to her departure from Cologne, Mustafa’s grandmother wished her a safe journey. Mustafa told her not to worry because she is "an expert on long walks."
Mustafa, who has cerebral palsy, has used a wheelchair since she was a child and for her trek from Syria to Europe that included crossing seas on a raft.
"What is the Barcelona bus doing here? Oh, my god!" exclaimed Mustafa as the bus pulled up to her house.
"Am I sitting in Messi's place?" she asked aboard the bus.
FC Barcelona documented Mustafa’s 18-hour ride to Camp Nou, the club’s stadium.