From him, from Ibn Abi Umayr from Rifaa'ah from Abu Abdillah عليه السلام, peace be upon him, who said: I asked Imam al-Sadiq عليه السلام about the one who falls unconscious for a month, what does he make up of the prayer? Imam عليه السلام said: “He makes up all of it. Indeed, the matter of prayer is severe.”