I say, and with God's success: The fluids that exit from a person are three: First: Al-Mani (semen): This is general and includes the fluid of both man and woman, and it has characteristics by which it is recognized, which are: its smell is like the smell of fresh date blossoms, and like the smell of dried eggs; it is thick and white, and it breaks from the male. As for the female, it is thin and yellow, exiting with desire and with a feeling of relaxation afterward, and it comes out in spurts. It necessitates a full ablution (ghusl). Ali (may Allah be pleased with him) said: "I was a man who experienced pre-ejaculation (madhi), so I would wash myself in winter until my back cracked, and I mentioned that to the Prophet (peace be upon him) or it was mentioned to him. He said to me: 'Do not do that. If you see the pre-ejaculate, wash your private part and perform ablution for prayer. If you ejaculate water, then perform a full wash (ghusl)." This is found in Sahih Ibn Khuzaymah 1: 15, Sahih Ibn Hibban 3: 385, Sunan Abu Dawood 1: 53, and Al-Mujtaba 1: 111. And Ali (may Allah be pleased with him) said: "I was a man who experienced pre-ejaculation, and I asked the Prophet (peace be upon him). He said: 'If you ejaculate (hadhaf) — and hadhaf means to throw, and it can only be in this manner if there is desire — then perform a full wash (ghusl) for major impurity (janabah), and if you did not ejaculate, do not wash.'" This is found in Musnad Ahmad 1: 107. Al-Tahanawi said in I'la al-Sunan 1: 186: "All of its narrators are trustworthy except for Jawaban, who is truthful but was accused of heresy, so the chain is acceptable." And Mujahid reported that a man asked Ibn Abbas (may Allah be pleased with him): "Whenever I urinate, a flowing water follows me that is from which a child is born..." He said: "Do you find desire in your heart?" He said: "No." He said: "Do you feel numbness in your body?" He said: "No." He said: "This is merely a discharge that requires only ablution from you." This was narrated by Al-Hakim in his history, and its chain is good. See: I'la al-Sunan 1: 189, and Radd al-Muhtar 1: 107, 'Umdat al-Ri'ayah 1: 81, Al-Labab 1: 16, and Talabat al-Talabah p. 18. Second: Al-Madhi (pre-ejaculate): This is the thin fluid that comes out during weak desire through play and similar acts without ejaculation, and it necessitates ablution but not a full wash; for Ali (may Allah be pleased with him) said: "I was a man who experienced pre-ejaculation, so I would wash myself in winter until my back cracked, and I mentioned that to the Prophet (peace be upon him) or it was mentioned to him. He said to me: 'Do not do that. If you see the pre-ejaculate, wash your private part and perform ablution for prayer. If you ejaculate water, then perform a full wash (ghusl)." This is found in Sahih Ibn Khuzaymah 1: 15, Sahih Ibn Hibban 3: 385, Sunan Abu Dawood 1: 53, and Al-Mujtaba 1: 111. And Ali (may Allah be pleased with him) said: "I was a man who experienced pre-ejaculation, and I asked the Prophet (peace be upon him). He said: 'If you ejaculate (hadhaf) — and hadhaf means to throw, and it can only be in this manner if there is desire — then perform a full wash (ghusl) for major impurity (janabah), and if you did not ejaculate, do not wash.'" This is found in Musnad Ahmad 1: 107. Al-Tahanawi said in I'la al-Sunan 1: 186: "All of its narrators are trustworthy except for Jawaban, who is truthful but was accused of heresy, so the chain is acceptable." See: Radd al-Muhtar 1: 107, 'Umdat al-Ri'ayah 1: 81, Al-Labab 1: 16, and Talabat al-Talabah p. 18. Third: Al-Wadi (post-urination discharge): This is a thick white fluid that has no smell, which comes out after urination, and it necessitates ablution but not a full wash; because it follows urination and necessitates ablution due to being impure. Mujahid reported that a man asked Ibn Abbas (may Allah be pleased with him): "Whenever I urinate, a flowing water follows me that is from which a child is born..." He said: "Do you find desire in your heart?" He said: "No." He said: "Do you feel numbness in your body?" He said: "No." He said: "This is merely a discharge that requires only ablution from you." This was narrated by Al-Hakim in his history, and its chain is good. See: I'la al-Sunan 1: 189. See: Radd al-Muhtar 1: 107, and 'Umdat al-Ri'ayah 1: 81, Al-Labab 1: 16, and Talabat al-Talabah p. 18, and Allah knows best.