Afghanistan — 1914-1918-online. International Encyclopedia of the First World War

The 'Afghanistan' article of 1914-1918-online, the International Encyclopedia of the First World War. It names 'Najmuddin al-Din, known as the Hadda Mullah (?-1902)' among the most prominent frontier mullahs who encouraged resistance to the British before the First World War, and calls him 'the famous anti-British Mullah' whose mantle others inherited.