No namaz in Qur'an, so no namaz.
Namaz prayer is a ritual created by the rabbis, priests and mullas to make you 'worship' God when you should be following what God has taught you.
Jumma salat of Qur'an is gathering people together whenever there is a need to gather the people to discuss issues that need addressing by society. It is not a Friday prayer which was created to copy the Jewish sabbath, Saturday and Christian Sunday.
Do we need to be told how to wash in the Qur'an but not how Allah wants us to do a physical ritual prayer? What is more important?
Qur'an tells you to work out your salat by telling us that all the heavens including the birds in the sky know their salat. If you reduce this down to a physical prayer then you are reducing the meaning of the Qur'an down to a zero, useless act since you are just doing body movements and repeating words back to Allah that He gave you to read, understand and put into practice!