Chapter on the Prayer of the One in Necessity

Ahmad ibn Muhammad ibn Abi Nasr from Ibn Bukayr from Muhammad ibn Muslim who said: I asked Abu Ja’far عليه السلام, peace be upon him, about the one suffering from abdominal illness (al-mabtun). Imam عليه السلام said: “He builds upon his prayer.” (meaning performs ablution again, and continues from where he left it)