New Delhi, Dec. 3 -- A new Netflix docu-series, Sean Combs: The Reckoning, has revealed yet another disturbing allegation against music mogul Sean "Diddy" Combs.

In the four-part series, Bad Boy Records co-founder Kirk Burrowes claims that Combs once slapped and insulted his own mother, Janice Combs, during a heated moment in the early 1990s.

"I saw him put his hands on her, call her a b--ch and slapped her," Burrowes alleges in the documentary.

Burrowes says the confrontation took place in the aftermath of the December 1991 tragedy at City College of New York in Harlem, where a celebrity basketball game promoted by Combs ended in a deadly stampede that killed nine people.

The documentary revisits the chaos of that night, when fans su...