I showed him the grave of the revered martyr. The Imam sat beside the grave, facing the Qibla and sitting on his knees, and recited Surah al-Qadr (Inna Anzalnahu) and Surah al-Fatiha seven times. He then turned to those present and said, “Pray for his forgiveness.”
During that gathering, one of the religious scholars mounted the pulpit and recited a lamentation for Ali Akbar (AS). At that moment, the Imam took out his handkerchief and began to weep. In the course of the elegy, the eulogist mentioned Hajj Agha Mostafa, and those present burst into loud cries of grief. However, at that moment, the Imam fell silent. He wept only for the Imams.
Even more remarkable was that, a few days later, at the beginning of his lecture, His Eminence stated:“The passing of Mostafa is among the hidden favors of God.”
From the book Memoirs of Najaf, p. 7.