A Critical Examination of the Life and Teachings of Mohammed (1873)[1] — His first book, written when he was 24, while in England. The orientalist Major R. D. Osborn (1835–1889) wrote: "Regarded simply as a literary achievement, we have never read anything issuing from the educated classes in this country which could be compared with it; and the Muslims of India are to be congratulated on the possession of so able a man in their rank.