الكافي 1/4/120/7

7. Ahmad ibn Mahziyar, may Allah grant him blessings, has narrated from mmmd ibn ali from Sayf ibn ‘Umayra from Ishaq ibn ‘Ammar who has said the following. “Once I heard the pious servant of Allah giving the news of his own death to a man. I thought that he might or might not know when a person from his Shi‘a (followers) would die. He turned to me as if angry and said, “O Ishaq, if Rashid al-Hajri possessed the knowledge of deaths and suffering, the necessity for such knowledge for the Imam is much greater.” Then he said, “O Ishaq, do whatever you may like. Your life is destroyed and you will die within two years. Your brothers and family will very soon after you will scatter in disunity turn as traitors against each other so much so that even their enemies would scold them. Was this in your mind?” I said, “I seek refuge to Allah for what went in my center (heart or chest).” After that meeting Ishaq, did live for very long time.and he died. And very soon after banu (children of) ‘Ammar began to live on loans and they became very poor and destitute.”