If I remember correctly he's an American citizen right?
Gold Star father Khizr Khan cancels speech in Toronto after organizers report his travel privileges were under review
KHIZR KHAN EVENT CANCELLATION
Late Sunday evening Khizr Khan, an American citizen for over 30 years, was notified that his travel privileges are being reviewed. As a consequence, Mr. Khan will not be traveling to Toronto on March 7th to speak about tolerance, understanding, unity and the rule of law. Very regretfully, Ramsay Talks must cancel its luncheon with Mr. Khan. Guests will be given full refunds.
Mr. Khan offered his sincere apologies to all those who made plans to attend on March 7th. He said: "This turn of events is not just of deep concern to me but to all my fellow Americans who cherish our freedom to travel abroad. I have not been given any reason as to why. I am grateful for your support and look forward to visiting Toronto in the near future.
Gold Star father Khizr Khan canceled speech in Toronto after being told his travel privileges were under review - LA Times