Ahmed Mohamed, 14, tweeted "got my clock back finally!!", following the sentence with smiling emoji.
The family of Mohamed, who just came back from a trip to the White House where he met President Obama, earlier said in that it had hired two Dallas attorneys Thomas Bowers and Reggie London "to pursue Ahmed's legal rights and regain his science project from the Irving Police Department."
Bowers said they couldn't pick the clock up for a while as Mohamed, a ninth-grader, "has been busy travelling" and searching for new schools.
"If the clock was released so quickly, why'd they arrest him for it in the first place? Who in their right mind would think anything evil about it?" Browers was quoted as saying by the 'ABC news'.
The Texas boy was arrested on September 14 when he showed a teacher at his school his homemade clock, which the teacher feared was a bomb.
Mohmamed's family recently said the teen was moving to Qatar after accepting an offer from the Qatar Foundation to study at its Young Innovators Programme.
"Qatar was a cool place to visit. I loved the city of Doha because it's so modern. I saw so many amazing schools there, many of them campuses of famous American universities. The teachers were great. I think I will learn a lot and have fun, too," Ahmed said in a statement.
