Mohammad (PBUH) managed to break all 10 Commandments. Here is a recap:
1. I am the Lord your God, you shall have no other Gods before me.
2. You shall not make any false idols
3. You shall not take the name of God in vain.
4. Keep Holy the Lord's day.
5. Honor your Father and Mother.
6. You shall not kill.
7. You shall not commit adultery.
8. You shall not steal.
9. You shall not bear false witness before your neighbour.
10. You shall not covet your neighbour's wife, or anything that belongs to your neighbour.
So the question is, why is Mohammad (PBUH) holy?