The phrase "Hussein Who Said No" is the title of a historical film directed by Ahmad Reza Darvish. The film narrates the story of Hussein ibn Ali and the Battle of Karbala in 680 CE. It focuses on Hussein's uprising against Yazid ibn Muawiyah ibn Abu Sufyan and his refusal to pledge allegiance, hence the phrase "Who Said No" refers to Hussein's defiance against Yazid's authority. The movie tells this significant historical and religious event, highlighting the courage and sacrifice of Imam Hussein and his followers.

If the question "Hussein who said no" is referring to this context, it points to Imam Hussein ibn Ali, who stood firmly against Yazid's unjust rule in Islamic history.