What is the ruling on attending the graduation ceremony at the American University, given the necessity of wearing its specific graduation attire?

As long as attendance is optional, do not participate in it, to avoid imitating the disbelievers in wearing their special attire, and to avoid the reprehensible acts that are usually present in these celebrations. The Prophet, peace and blessings be upon him, said: "Whoever imitates a people is one of them."