If you study their biographies, Jesus and Muhammad lived very different lives. Their actions, their words and their teachings were different.
Let’s look at a few examples.
Muhammad said: “Allah hates those who don’t accept Islam.” (Qur’an 30:45, 3:32, 22:38)
Jesus said: God loves the whole world and desires salvation for all. (John 3:16)
Muhammad said: “Fight everyone in the way of Allah and kill those who disbelieve in Allah.” (Ibn Ishaq 992)
Jesus said: “Love your neighbor as yourself” (Matthew 5:14)
Muhammad said: “I have been commanded to fight against people till they testify that there is no god but Allah, and that Muhammad is the messenger of Allah” (Muslim 1:33)
Jesus said: “I have come to seek and save those who are lost.” (Luke 19:10)
Muhammad stoned women for adultery. (Muslim 4206)
Jesus saved a woman from being stoned for adultery. (John 8:7)
Muhammad permitted Muslim stealing from unbelievers. (Bukhari 44:668, Ibn Ishaq 764)
Jesus said: “You shall not steal.” (Matthew 19:18)
Muhammad permitted Muslims to lie. (Sahih Muslim 6303, Bukhari 49:857)
Jesus said: “You shall not (lie) bear false witness.” (Matthew 19:18)
Muhammad owned and traded slaves. (Sahih Muslim 3901)
Jesus never owned or traded any slaves.
Muhammad and his followers beheaded 800 Jewish men and boys. (Sahih Muslim 4390)
Jesus and his followers beheaded no one.
Muhammad ordered the murder of those who insulted him. (Bukhari 56:369, 4:241)
Jesus preached forgiveness. (Matthew 18:21-22, 5:38)
Muhammad said: Jihad in the way of Allah elevates one’s position in Paradise by a hundred fold. (Muslim 4645)
Jesus said: “Blessed are the peacemakers, for they will be called sons of God” (Matthew 5:9)
Muhammad married 13 wives and kept many sex slaves. (Bukhari 5:268, Qur’an 33:50)
Jesus never married.
Muhammad ordered the murder of women. (Ibn Ishaq 819, 995)
Jesus never harmed any woman.
Muhammad killed captives taken in battle. (Ibn Ishaq 451)
Jesus never took captives or killed anyone.
Muhammad encouraged his men to rape their female slaves. (Abu Dawood 2150, Qur’an 4:24)
Jesus never enslaved women or encouraged rape.
Muhammad tortured people. (Muslim 4131, Ibn Ishaq 436, 595, 734, 764)
Jesus suffered torture, but never tortured anyone.
Muhammad said: “Fight them until there is no more persecution and religion is only for Allah” (Qur’an 8:39)
Jesus said: “Love your enemies and pray for those who persecute you” (Matthew 5:44)
Muhammad praised the brutal murder of a half-blind man (al-Tabari 1440)
Jesus healed blind men (Mark 8:28, etc)
Muhammad ordered a slave to build the pulpit from which he preached Islam. (Bukhari 47:743)
Jesus washed his disciples feet to teach humility and servanthood. (John 13:5)
When Muhammad first heard from the angel, he was terrified, ran away fearing it was a demon and he even wanted to commit suicide.
When Jesus heard from God, he began his ministry with boldness.
God never spoke directly to Muhammad, but rather Muhammad received his calling from from an angel in the darkness of a cave.
God spoke directly to Jesus, in the daylight and with witnesses around.
Muhammad succumbed to magic and witchcraft.
Jesus commanded evil spirits and demons to flee from him.
Muhammad was a sinner. (Quran 40:55, 48:1-2)
Jesus never sinned. (1 Peter 2:22)
Muhammad performed no miracles.
Jesus performed many miracles.
Muhammad was just a man.
Jesus claimed to be God (John 8:24; 8:58), who had come in the form of a man.
As you can see the teaching and actions of Jesus and Muhammad were diametrically opposed. The thing is, if you accept one, you would have to reject the other becsue both cannot be right at the same time..