According to eyewitnesses, the MNA-elect was saddling himself when his foot slipped and he fell to the ground. The accident happened in a village in the outskirts of the capital.
Umar was taken to a hospital after he complained of back pain. He underwent a CT scan and was discharged after doctors gave him the all-clear, sources told media.
The PTI leader has been advised to rest by the doctors, the sources added. He was seen leaving the hospital in a wheelchair.