How to unbind a gpu /sys/bus/pci

How do I unbind an Nvidia GPU in /sys/bus/pci/driver/nvidia/unbind in order to use it for virtualization I am using sudo echo "0000:09:00.0" > unbind but I get bash: unbind: Permission denied I am following the docs from IBM ,but can't seem to figure out to unbind the gpu the os I am using is ubuntu 22.04 when running the command echo "0000:09:00.0" | sudo tee /sys/bus/pci/drivers/nvidia/unbind this cause the terminal to hang and I can't use it anymore even trying to kill the process fails

root        8646  0.0  0.0  14356  5912 pts/0    S+   09:07   0:00 sudo tee /sys/bus/pci/drivers/nvidia/unbind
root        8647  0.0  0.0  14356   956 pts/1    Ss+  09:07   0:00 sudo tee /sys/bus/pci/drivers/nvidia/unbind
root        8648 11.5  0.0   8380  1024 pts/1    R    09:07   0:14 tee /sys/bus/pci/drivers/nvidia/unbind