Earlier, a Delaware court judge set 28th October as a deadline for the Twitter deal.
Musk pledged to close the deal on a video conference call on Monday with bankers who are helping fund the deal.
Twitter shares jumped on the news and were trading up 3% at $52.78.
Morgan Stanley and Bank of America Corp, have committed to provide $13 billion of debt financing to support this deal.
Musk’s takeover of Twitter has been a game of circus with Musk first getting sued for pulling out of the deal and then later confirming to stick with the original deal.