The follow-up ability of the Imam despite his old age was to such an extent that none of those close to him could claim to have seen the Imam idle or disengaged even once and wasting his time.
In this period when we were in the presence of the Imam, we observed that there was no such thing as taking off from working for the people and the Islamic Revolution.
For the Imam it made no difference whether it was summer or winter, Saturday or Friday, feast day and non-feast day. At all times he was busy either reading or worshipping or studying the various reports that he would receive.[1]
[1]I never saw the Imam idle even once: Hujjat al-Islam Rahimiyan