At that time he was the Ayatollah Khomeini’s representative at the Supreme Council of National Defense. After the first prayer, Ayatollah Khamenei began to answer questions submitted by listeners. Between prayers one tape recorder with papers was set on the desk in front of the Ali Khamenei by a young man who pressed the play button. After on minute the loud speaker’s sound became like a whistle and the tape recorder exploded. After the bombing the cleric who pray at that mosque said the tape recorder such as book divided to two part which be written on the inner wall of it “the gift of Furqan Group to Islamic republic”