Musk said on Thursday that he had commitments worth $46.5 billion to finance his proposed bid for the company and that he was considering launching a hostile takeover.
In documents filed with the SEC, Mr. Musk said that he was considering taking his offer directly to the shareholders of the company.
Debt and cash make up the commitments. Morgan Stanley is one of the banks that is offering up debt financing and loans against Mr. Musk's stock. Mr. Musk is expected to add $21 billion in equity financing.
Last week, Mr. Musk made an offer for the social media company, saying that he wanted to take it private and that he wanted people to be able to speak more freely on the service. Wall Street was skeptical about his offer because he didn't include details about how he would pay for the deal.
Mr. Musk said he would review his investment in the micro-blogging site. If Mr. Musk bought more than 15 percent of the company, the board responded with a poison pill. The 50-year-old had been building up a stake in the company and had become its single biggest individual shareholder.
The billionaire teased on Saturday that he was going to make a tender offer.