"I wanted to summarize the letter first to release it (on my facebook page) but I saw that every words of it is important," Haroun al-Baynavi told FNA on Monday.
"The letter is short but important and numerous issues have been mentioned in it which should be studied correctly," he added.
Noting that the letter has targeted the hearts of the western people, Baynavi said, "The letter is read not only by the western youth but by their parents and this is an important development."
On Sunday, Ayatollah Khamenei released an important message to the world youth on global terrorism, including the recent terrorist attacks in Paris.