Hello. Bahai says: Manifestations of God, who are the founders of major world religions throughout human history; Buddha, Jesus, and Muhammad are cited as the most recent of these Manifestations of God before the Báb and Baháʼu'lláh. Baháʼís regard the world's major religions as fundamentally unified in their purpose, but divergent in their social practices and interpretations.
Buddha is not a manifestation of God. The major religions are not unified in their purpose.
