Analysis of information sources in references of the Wikipedia article "Hindu–Muslim unity" in English language version.
In Hyderabad 1880-81 Afḡānī published six Persian articles in the journal Moʿallem-e šafīq, which were reprinted in Urdu and Persian in various editions of Maqālāt-e Jamālīya. The three major themes of these articles are: 1. advocacy of linguistic or territorial nationalism, with an emphasis upon the unity of Indian Muslims and Hindus, not of Indian Muslims and foreign Muslims; 2. the benefits of philosophy and modern science; and 3. attacks on Sayyed Aḥmad Khan for being pro-British. On nationalism, he writes in "The Philosophy of National Unity and the Truth about Unity of Language" that linguistic ties are stronger and more durable than religious ones (he was to make exactly the opposite point in the pan-Islamic al-ʿOrwat al-woṯqā a few years later). In India he felt the best anti-imperialist policy was Hindu-Muslim unity, while in Europe he felt it was pan-Islam.
Much before Madani, Jamaluddin Afghani argued that Hindus and Muslims must come together to overthrow the British. Husain Ahmad would argue the same thing after five decades.