This incident tapped while delivering a lecture via a microphone in Najaf several years before the victory of the 1979 Islamic revolution in Iran.
Some students had managed to record Imam’s lessons on Islamic government and governance which latter formed theoretical pillars of the Islamic Republic.
Imam’s lecture in Najaf were attended by a large number of seminary students, Islamic scholars from various countries residing in Najaf during 1960s and 1960s.
Imam Khomeini spent over 14 years in exile, mostly in the holy city of Najaf in Iraq. Initially, he was sent to Turkey on 4 November 1964, where he stayed in the city of Bursa for less than a year. He was hosted by a Turkish Colonel named Ali Cetiner in his own residence, who couldn't find another accommodation alternative for his stay at the time. Later in October 1965 he was allowed to move to Najaf, Iraq, where he stayed until being forced to leave in 1978, after then-Vice President Saddam Hossein forced him out (the two countries would fight a bitter eight year war 1980-1988 only a year after the beginning of Imam Khomeini’s leadership in Iran and the start of Saddam Hussein’s term in Iraq) after which he went to Neauphle le Château in France.
Logically, in the 1970s, as contrasted with the 1940s, he no longer accepted the idea of a limited monarchy under the Iranian Constitution of 1906-1907, an idea that was clearly evidenced by his book Kashf-e Asrar. In his Islamic Government (Hokumat-e Islami) — which is a collection of his lectures in Najaf published in 1970 — he rejected both the Iranian Constitution as an alien import from Belgium and monarchy in general. He believed that the government was an un-Islamic and illegitimate institution usurping the legitimate authority of the supreme religious leader (Faqih), who should rule as both the spiritual and temporal guardian of the Muslim community (Umma).
In early 1970 Imam Khomeini gave a lecture series in Najaf on Islamic Government which later was published as a book titled variously Islamic Government or Guardianship of the Islamic Jurists (velayat-e faqih). This was his most famous and influential work and laid out his ideas on governance (at that time):