There is absolutely no need for any external argument to refute Qadianism and demolish the false prophethood of Mirza Qadian. For this, the contradictory writings of Mirza Qadiani are enough. The book under comment is also a witness of this.
A book called “Ahmadiyya Pocket Book” has been written to justify the dirty religion like Qadianism, which is now widely available on the internet. And the Mirzai gentlemen do not take pride in the authorship of this book, that the answer cannot be given. The book under comment contains a rich and comprehensive answer to the same book. Which includes more or less all the discussions related to Qadianism.
And all the objections, interpretations and doubts and distortions of the Ahmadiyya pocket book have been refuted by the writings of Mirza Qadiani himself in such a way that the reader cannot remain without appreciating the hard work of the author. This book is truly a fantastic book in the field of anti-Qadianiyyah.
https://kitabosunnat.com/kutub-library/muhammadia-pocket-book-bajawab-ahmadia-pocket-book