Truth about the Split, the English translation of A'ina'-e-Sadaqat, written by Hadrat Khalifatul Masih IIra, is a detailed reply to The Split by Maulawi Muhammad Ali, who after having denied the institution of Khilafat had seceded from the main body of the Ahmadiyya Muslim Jama'at and established his party headquarters at Lahore.
Truth about the Split has been divided into two main parts. The first part consists of the refutation of the eleven misstatements and unfounded charges leveled against Hadrat Khalifatul Masih IIra in The Split, and of the thoroughly fabricated story of the Ahmadiyya dissension. First few misstatements revolve around a person named Zahiruddin who was believed to be, by the Lahore Party, the originator of the belief of the prophethood of the Promised Messiahas.
Another controversy was whether those who denied the Promised Messiahas should be regarded as Muslims or Kafir-bil-Ma'mur. In fact, Hadrat Khalifatul Masih IIra had already proved that the Promised Messiahas regarded them as the latter. Another controversy generated by Maulawi Muhammad Ali was that people had pledged Bai'at with the second Khalifa in ignorance, and that they had later renounced their Bai'at with him.
The second part of the book deals with the true story of the split. It elaborates how Khwaja Kamaluddin, Maulawi Muhammad Ali and few others intrigued to bring down the Institution of Khilafat during the time of Hadrat Khalifatul Masih Ira, how they openly showed their hostility after his demise by proposing delay in the election of the next Khalifa, and what finally impelled them to set up their own separate organization. The book then sets out, in clear terms -- in the light of Al-Wasiyyat by the Promised Messiahas -- as to who (Anjuman or the Khalifa) should actually succeed the Promised Messiahas.