The Duty of One Who Knows There Is Semen in the Urethra
Issue No. 1351- If a fasting person who had a seminal discharge while sleeping knows that there is semen left in the urethra while knowing that not urinating before performing ghusl will result in semen discharging after performing ghusl, it would be better for him to urinate before performing ghusl; however, it is not obligatory to do so.