How can one know that prophet Muhammad was not crazy? - Q&A - Sh. Dr. Yasir Qadhi

Some people acknowledge that the Prophet of Islam, Muhammad (peace be upon him), was sincere when claiming prophethood, but they believe that he was deluded i.e. that the Prophet thought he was receiving divine inspiration, but in reality he was crazy. Is it possible that this is true? Listen to Sh. Dr. Yasir Qadhi's reply.