CALIFORNIA, United States — Elon Musk, the billionaire poised to acquire Twitter later this week, strolled into the company’s headquarters Wednesday carrying a porcelain sink and tweeting “Entering Twitter HQ – let that sink in!”

Musk’s $44-billion deal to take Twitter private faces a Friday deadline, although the video he posted offered no evidence that the acquisition is complete. Twitter and Musk representatives had no comment on that question, although Twitter did confirm that Musk’s video tweet was real. Musk also changed his Twitter profile to refer to himself as “Chief Twit” and his location to Twitter’s San Francisco headquarters.

The splashy video — a vintage Musk production — also pulled the spotlight back to the world’s richest man and his on-again, off-again pursuit of the social platform.

The Friday deadline to consummate the deal was ordered by the Delaware Chancery Court in early October. It is the latest step in an epic battle during which Musk signed a deal to acquire Twitter, then tried to back out of it, leading Twitter to sue the Tesla CEO to force him to conclude the deal. If the two sides don’t meet the Friday deadline, the next step could be a November trial.