Question 115: Someone told me if a Muslim has conjugal intercourse, it is obligatory that he should urinate before performing Ghusl (ritual bath); otherwise he will remain Junub (in a state of major ritual impurity). This is because there will still be some Maniy (spermatic fluid) in his penis that can only be removed by urination. What is your opinion on this?
Answer: The Ghusl is valid without the urination. However, if a man urinates after performing Ghusl and some Maniy comes out along with the urine or alone, but without desire, it is not required to perform Ghusl again. It is sufficient just to perform Istinjaa’ (cleansing the private parts with water after urination or defecation) and the Islaamically prescribed Wudoo’ (ablution)… read more here.