Brahin-e-Ahmadiyya, Parts one and two were authored by Hadhrat Mirza Ghulam Ahmad of Qadian (as) and published in 1880. At that time, the Indian subcontinent had become a virtual battleground for the major religions of the world. Islam, in particular, found itself on the defensive against the onslaughts of Christians and Hindus, who spared no ploy to defame the Faith and its founder. He wrote "What I am trying to demonstrate by writing all this is that Tauhid (Oneness of God) in its purest form, is not to be found among any people on the face of the earth except the followers of the Holy Prophet Muhammad, may peace and blessings of Allah be upon him. And there is no book upon the earth, other than the holy Quran, that has firmly committed millions to this holy doctrine and that leads mankind so reverentially towards the One True God. People of every religion have created artificial gods for themselves, whereas the God of the Muslims is the One, Eternal, and Immutable God, whose attributes are the same today as they were before." [Part II, Preface, page 138] Based on the Holy Quran, he declared that all religious founders whose teachings have become widespread must be honored and accepted as true. He also appealed for due courtesy in all religious discussions. - from Amzon