Complex sentence: Due to his versatile scholarly interests, Ismail was a subscriber to the magnum opus of Mirza Ghulam Ahmad, the Barahin-e-Ahmadiyya, and when it was published, he received copies in 1883 and 1884.
Split into simpler sentences: Due to his versatile scholarly interests, Ismail was a subscriber to the magnum opus of Mirza Ghulam Ahmad the Barahin-e-Ahmadiyya. So when it was published, he received its copies in 1883 and 1884.