Even on the night before the surgery on the hospital bed and the serum and drugs were being injected and despite general weakness, the Imam did not neglect to recite the Qur'an and perform prayers. He was not ready to spend a single moment of his life however short and fleeting, in idleness.[1]
[1]Making full use of time even when hospitalized, Hujjat al-Islam Rasuli Mahallati