What Jinnah said in 11 August speech is very clear --- some confused souls tried to create controversies --- Jinnah himself responded to such people:
"I cannot understand the logic of those who have been deliberately and mischievously propagating that the Constitution of Pakistan will not be based on Islamic Sharia. Islamic principles today are as much applicable to life as they were 1300 years ago."
Mohammad Ali Jinnah, Speech to Karachi Bar Association, January 25th, 1948.
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Bring the speech/quote where he said that Pakistan will be a secular state or Pakistan will not be an Islamic state.
Who ever tries to discredit Wali Jinnah R.A. are burning inside due to his success and foresight and from saving Muslims from a slaughter. What he said has shown to be true, as for the rest they have no sauce.