The al-Quds Mosque was attended by some of the September 11 attackers including Mohamed Atta, Marwan al-Shehhi, Ramzi bin al-Shibh, and Ziad Jarrah who formed the Hamburg cell.

[1] The mosque opened in 1993 and was run by the Taiba German-Arab Cultural Association.

[4] Under the leadership of Imam Muhammad Fizazi (fr), the mosque preached a radical version of Sunni Islam.

[5] By 2004, the mosque had, according to security authorities, become a meeting points for North Africans and Iraqi proponents of jihadism.

[7][8][9] German authorities discovered that ten members of the mosque had traveled to the border region of Pakistan and Afghanistan, and Shahab D., an Iranian at the mosque, had joined the Islamic Movement of Uzbekistan.