The incident occurred on March 29, 2021.
Sagwak had also petitioned the National Human Rights Commission (NHRC) to probe the incident.
Senator Istifanus Gyang (Plateau North) submitted a petition on the incident to the Senate on behalf of his constituent, Sagwak.
A viral five- minute video captured Umar and the guard having an altercation at the plaza.
Sagwak, 22, and an employee of Jul Reliable Guards Services Limited, told the Senate he was attacked by Umar last month.
He said he was assaulted by Umar and a policeman attached to him after he informed him (Umar) that his car was not properly parked.
He said the CCT boss slapped him several times and forced him to kneel down in the presence of everybody while undergoing his lawful activities.
Senator Gyang said his constituent is asking the Senate to investigate the incident and ensure justice is served.
He called on the Senate to give the petition a speedy consideration.
Senate President, Ahmad Lawan, referred the petition to the Senate Committee on Ethics, Privileges and Public Petitions to report back to plenary in four weeks.