London’s High Court heard Friday that Johnny Depp accused his ex-wife Amber Heard of having an affair with Elon Musk, during Depp’s ongoing libel case against The Sun.

Hearings from the London court included text threads from Depp where he threatened to cut off Musk’s penis because he believed his then wife was having an affair with the Tesla founder.

“Let’s see if Mollusk has a pair, comes to see me face-to-face,” Depp wrote, giving the CEO of SpaceX a nickname. “I will show him things he’s never seen before, like the other side of his d–k when I slice it off.”

Musk has denied having an affair with Heard. The two dated for a year after Depp and Heard split in 2017.

Depp is suing News Group Newspapers, which publishes The Sun, for libel after they published a story in 2018 that called him a “wife beater.” The Sun maintains that the story was entirely truthful. Depp has argued over the past several days of hearings that he was not abusive towards Heard, but that she was abusive towards him. Heard has claimed that Depp has physically abused her, including claims that he has thrown a champagne bottle at her, ripped her hair out, and thrown a phone at her face, leaving a bruise.