The Roman commander in Jerusalem asked if Paul was which rebel?

Answer: The Egyptian

The commander asked, "Aren't you the Egyptian who incited a rebellion and led four thousand into the wilderness?"

“As they were about to take Paul into the barracks, he asked the commander, “May I say something to you?” “Do you speak Greek?” he replied. “Aren’t you the Egyptian who incited a rebellion some time ago and led four thousand members of the Assassins into the wilderness?””— Acts 21:37-38 (BSB)