Yes Jesus does speak about Muhammad.
There are 3 chief demonic spirits, The Dragon, the Antichrist, and the False Prophet. The Dragon opposes the Father, and the AntiChrist opposes Jesus Christ and the False Prophet opposes the Holy Spirit.
Allah{Who is the second chief demonic spirit who is sent from the Dragon which opposes the Father} is the One who opposes Jesus Christ.
Example Allah claims that Jesus is nothing more than a prophet sent from him, belittling the the true essence of His very being. Muhammad is claimed to be the greatest of the prophets even including Jesus.
Third chief demonic spirit is the False Prophet, this demonic spirit saw muhammad and entered into Him, now, the false prophet opposes the Holy Spirit and is attempting to take its place, example:an attempt to show that the Holy Spirit is Muhammad because the spirit of the false prophet had entered muhammad.
Truely I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme: But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation:
Thank you for 100% proving to us that Muhammad is the False Prophet by your own words!