What was the exact quote that Jinnah said in the movie "Gandhi" in the scene where he is made Prime Minister?

In the movie "Gandhi", near the end, there is a scene where, at a meeting, Gandhi basically makes Jinnah the first Prime Minister of India. Then Jinnah says this quote about how you either need a Pakistan and an India, or else there would be civil war. What's the quote? I can't seem to find it anywhere, and I need it for my history esssay. super important!