One day at around ten minutes past eight o'clock in the morning the force of an explosion resulting from a missile strike closest to Jamaran shook the entire place such that the door of the Imam's room flung open and banged hard on my back as I was sitting next to the door. In that circumstance my attention was diverted to the Imam but I saw no change or reaction in his facial appearance. Later on also when the heart of the Imam was being constantly monitored by means of specialized equipment, I sought the opinion of one of the physicians attending on him and it became clear that there wasn't the slightest change even in the beating of his blessed heart as reflected on the aforementioned equipment.[1]
[1] Normal heartbeat of the Imam during the war on the cities: Hujjat al-Islam Rahimiyan