Trace Cyrus, brother of Miley Cyrus and son of Bill Ray Cyrus, wrote on social media Saturday that his father threatened legal action against him following the son’s plea for his father to get help.

She's thriving and looking out for herself," a source tells PEOPLE of the singer Miley Cyrus is staying out of the recent drama surrounding her famous family. A source tells PEOPLE exclusively that the singer,

"You should be ashamed of yourself," Trace wrote publicly on Saturday, two days after saying he's "genuinely worried" about the country star's well-being.