Narrated by the Shaykh (Al-Mufid), may Allah سبحانه وتعالى support him, from Ahmad ibn Muhammad, from his father, from Sa'd ibn Abdullah and Muhammad ibn al-Hasan al-Saffar, from Ahmad ibn Muhammad, from al-Husayn ibn Sa'id, from Hammad, from Hariz, from Muhammad, who said: I asked Abu Abdullah عليه السلام about a man who finds something coming out of his urethra after performing ghusl. Imam عليه السلام said: "He must perform ghusl again and repeat the prayer, unless he had urinated before performing ghusl, in which case he does not need to repeat the ghusl." Muhammad narrates: “Abu Ja'far عليه السلام said: "If a man performs ghusl while in a state of janabah before urinating and then finds wetness, his ghusl is invalid. However, if he urinated before performing ghusl and then found wetness afterward, his ghusl remains valid, but he must perform wudu, as urination would have cleared any remaining impurity."