Tesla Inc TSLA chairman Elon Musk answers questions from Twitter Inc TWTR in a Delaware courtroom next week as he stands ready to be removed in a case related to his now-shedding takeover of the social media platform.

What happened: The deposition is scheduled for September 26-27 and may continue until September 28 if necessary. reported Reuters, citing a court filing.

The case is related to Musk’s $44 billion acquisition of Twitter, which the entrepreneur later backed away from.

The lawsuit included several billionaires and friends by Musk, including Chamath Palihapitiya, David Sacks, Joe Lonsdale, Steve Jurvetson, Marc Andresen, Jason Calacanis, and Keith Rabois.

See also: How to buy Tesla (TSLA) shares

Why it matters: Musk in July backed out of the deal which to buy Jack Dorsey-founded social media site citing a material breach of several provisions of the agreement.

Specifically, the Tesla CEO said Twitter has repeatedly failed to provide data on monetizable daily active users so it could determine how many users are fake or spam accounts.

Last week Twitter shareholders voted to take over from Musk amid the legal confusion surrounding the deal. The trial is expected to begin on October 17 if no agreement is reached before that date.

Price promotion: On Tuesday, Tesla shares fell 0.4% to $307.40 in after-hours trading after ending the regular session down 0.1% at $308.73 Data from Benzinga Pro.

Continue reading: Jack Dorsey Gets Deposed in Elon Musk Twitter Deal Lawsuit Today: What You Need to Know