If compare the life of Muhammad before his mission as a prophet and his life after he began his mission as prophet, we will conclude that it is beyond reason to think that Muhammad was a false prophet who claimed prophethood to attain material gains, greatness, glory or power
Before his mission as a prophet , he had no financial worries. As a successful and reputed merchant, he drew a satisfactory and comfortable income. After his mission as a prophet and because of it , he became worse off materially.