According to documents, Khalifa, 27, attempts to gain more custody of their son Sebastian, who turns two on February 21, because he believes Rose "is a bad mom", reported TMZ.
Khalifa claims Rose often stays out all night and gets relatives and staff to babysit Sebastian. He also says Rose lets the family dog lick their son's face after eating its own feces.
Rose allegedly only plays for 15 minutes with their son when she wakes up in the morning before disappearing.
While Khalifa has not filed legal documents yet, he is currently trying to get support from relatives and other involved to make his case.
Khalifa has not commented on the report yet but he shared on Instagram a video of him teaching Sebastian how to start a car. "Too fire," he captioned it. The proud father also tweeted, "Bash hit the switch today. I'm so proud to say my son hit his first switch at almost two years old. God is good."