Muhammad in Parsi, Hindoo and Buddhist Scriptures

Salvation lies in all religions, and parsis, hindoos and buddhists are no exception, provided one but trusts in god and acts aright. it does not depend on any particular dogma, creed, ritual, penance intercession atonement, and much less on ones own breed, pedigree or caste. But then the question arises, what is god and what is good and evil or the natural question that wherefore in this scheme of creation.