From him, from Safwan from Mansur ibn Hazim from Abu Abdillah عليه السلام, peace be upon him:
Imam al-Sadiq عليه السلام was asked regarding the one who falls unconscious. Imam عليه السلام said: “He makes up everything that he missed.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 337