He claimed to have recruited Salim Ahmed Hamdan to al-Qaeda, where the latter became a driver for bin Laden. The two men married sisters and became brothers-in-law.[2] Captured in Afghanistan in 2001, Hamdan was the first detainee tried under the United States' tribunals; his military defense attorney took his case to the US Supreme Court in Hamdan v. Rumsfeld (2006) to challenge their constitutionality. Al-Bahri and Hamdan were the subjects of the documentary, The Oath (2010), by American director Laura Poitras, which explored their time in al-Qaeda and afterward.