Mirza Ghulam Ahmad announced in 1879 that he was raising money for his arguments in support of Islam (see Dard, it is unclear where these were published, by what newspaper?). The book was finally published some time in 1880. Ahmadiyya leadership lies and claims that the book was already fully written and MGA only published a portion of it. The reality is that MGA had ghost-writers at this time, he thus dictated the contents of this book and seems to have had help from friends like Sufi Ahmad Jan and a few others. In the BA2, MGA quoted 18:109 (18:110, in the Ahmadi quran)(see also 31:27, the verse is identical) and says that “”Say, ‘If the ocean became ink for the words of my Lord, surely, the ocean would be exhausted before the words of my Lord came to an end, even though We brought the like thereof as further help.’. Thus, MGA was arguing from the Quran that Allah will continue talking (prophethood) to Muslims until the Day of Judgement and this Islam was superior to all other religions. In volume 3, MGA quoted 9:32, and essentially was claiming prophethood for himself.
There were many announcements about this book. In 1908, Miraj-ud Din Umar wrote a short biography about MGA in this book also, which was removed in future editions. Mi‘raj-ud-Din’s biography (1908) is also quoted by Walter in the 1916-1918 era as he wrote his lengthy review of MGA’s and his Ahmadiyya Movement (see pages 14-15).
Mirza Ghulam Ahmad was the classic punjabi fraudster. He had promised the Muslims of the Indian sub-continent 300 arguments in favor of Islam in roughly 1878. However, he only delivered one argument, and that argument was his claim of prophethood, which immediately got him declared as a Kafir by the ulema in India.
The Ahl-e-Hadith Muslims of North India tore up the Barahin-i-Ahmadiyya and sent it back to Qadian in that state (1884-1885 era), these were the Muslims who had invested heavily in the publishing of the Barahin. MGA stopped at one argument and even that was incomplete, see the quote in the below. In 1886, in Surmah Chashmay Arya, MGA again asserted that the Barahin was ready to be published, however, funds were needed. For the next 20 years, this promise remained broken. In 1906-1907 (See Haqiqatul Wahy), MGA and his team of writers of spoke about the creation of Barahin-i-Ahmadiyya Vol. 5. However, it was not completed or published in MGA’s life.
After MGA died, Noorudin (who was the main ghost writer) wrote BA-5 and had it published in October of 1908, he added that MGA promised 50 volumes and 50=5. MGA didn’t write this at all. In fact, BA-5 isn’t even a continuation of BA 1-4, it is altogether a new book and in-fact contains 3-4 small booklets which were mashed together to create BA-5, one of which is Nusrat ul Haq and at least 40 pages of nonsensical poetry.