ثم قال:( وأدنى ما يجزيه لطهارته من البول أن يغسل موضع خروجه بالماء بمثلي ما عليه من البول وفي الاسباغ للطهارة منه ما زاد على ذلك من القدر).
Then he (Shaykh Al-Mufid) said: "The minimum required for purification from urine is to wash the place of its exit with twice the amount of water compared to the urine present on it. For thorough purification (isbagh), using more water than this amount is preferred."