Personally, I very much hope that Mossad did, in fact, steal the man's shoe. Certainly if there is anyone that Mossad should steal a shoe from it is that guy.
In fact, I very much hope that on Christmas morning Asghar and his family awake to find their home decked-out in Christmas ornamentation via Minnesota, USA, 1985. That is, I want Asghar to come strolling downstairs in his jammies and his slippers on Christmas morning to discover socks filled with candy hanging from the mantle and a big old Christmas tree filled with lights and festooned with ribbons and bursting with presents beneath.
What could be more fun?
In any event, the book that Asghar references as a reason that he believes that "Zionists" sneaked into his house to steal a shoe is called They Dare to Speak Out by Paul Findley.
Below is a video of Mr. Findley describing Israel as something akin to Nazi Germany. The very first words out of his mouth are Israel Shahak who is a well-known defamer of the Jewish religion and the Jewish people.