Bayhaqi 798 — The description of the fluid of the man and the woman

Sayyiduna Thawban (may Allah be pleased with him), the freed slave of the Messenger of Allah (peace and blessings be upon him), says: I was standing with the Messenger of Allah (peace and blessings be upon him) when a Jewish scholar came and said: 'As-salamu alayka ya Muhammad' (Peace be upon you, O Muhammad!). The narrator says: I pushed him so hard that he nearly fell. The Jew said: Why did you push me? I said: Why do you not say, 'O Messenger of Allah'? The Jew said: We will call him by the name that his family gave him. The Messenger of Allah (peace and blessings be upon him) said: "The name my family gave me is Muhammad (peace and blessings be upon him)." The Jew said: I have come to ask you about some things. The Messenger of Allah (peace and blessings be upon him) said: "If I tell you something, will it benefit you?" He said: I will listen with my ears. Then the Messenger of Allah (peace and blessings be upon him) scratched the ground with a stick that he (peace and blessings be upon him) had with him, and then said: "Ask." The Jew said: Where will people be (at that time), on the Day when the earth will be changed into another earth, and the heavens as well [Surah Ibrahim: 48]? The Messenger of Allah (peace and blessings be upon him) said: "They will be in darkness, short of the Bridge (al-Sirat)." He said: Which people will be given permission (to cross into Paradise) first? He (peace and blessings be upon him) said: "The poor among the Muhajirun." The Jew said: When they enter Paradise, what will their gift be? He (peace and blessings be upon him) said: "Hospitality with the (extra lobe of the) fish's liver." He said: What will their food be after that? He (peace and blessings be upon him) said: "The bull of Paradise, which used to graze in its various parts, will be slaughtered for them." He said: What will their drink be? He (peace and blessings be upon him) said: "From a spring whose name is Salsabil." He said: You have spoken the truth. Then he said: And I have come to ask you about something that no one among the people of the earth knows except a prophet, or one or two men. He (peace and blessings be upon him) said: "If I tell you something, will it benefit you?" He said: I will listen with my ears. And he said: I have come to ask you about the child. The Prophet (peace and blessings be upon him) said: "The man's fluid is white and the woman's fluid is yellow. When the man's semen prevails over the woman's semen, the two produce a boy by the permission of Allah; and when the woman's semen prevails over the man's semen, a girl is born by the permission of Allah." He said: You have spoken the truth; indeed you are a true prophet. Then he went away. The Prophet (peace and blessings be upon him) said: "I had no knowledge of the things he asked me about, until Allah gave me knowledge of them."