prayers

Once, Imām Ṣādiq (pbuh) stated to his companions, ‘Can you recognize whether the disaster you suffer, will last long or not?’ The companions said, ‘No!’ The Imām reacted, ‘whenever reading is inspired [and you perform it] to each of you, it means the disaster doesn’t last [and it will be]!’   (Kāfī, Vol. 2, P. 470)

2-    Why are the healthy people expected to read prayers as the sick people?