Takhrij Hadith 1722: "While I was standing beside…"

While I was standing beside the Messenger of Allah (peace and blessings be upon him), one of the rabbis of the Jews came and said: Peace be upon you, O Muhammad. I pushed him back with a push that he was going to fall. Upon this he said: Why do you push me? I said: Why don't you say: O Messenger of Allah? The Jew said: We call him by the name by which he was named by his family. The Messenger of Allah (peace and blessings be upon him) said: My name is Muhammad with which I was named by my family. The Jew said: I have come to ask you (something). The Messenger of Allah (peace and blessings be upon him) said: Should that thing be of any benefit to you, if I tell you that? He said: I will lend my ears to it. The Messenger of Allah (peace and blessings be upon him) drew a line with the help of the stick that he had with him and then said: Ask (whatever you like). Thereupon the Jew said: Where would the human beings be on the Day when the earth would change into another earth and the heavens too (would change into other heavens)? The Messenger of Allah (peace and blessings be upon him) said: They would be in darkness beside the Bridge. He said: Who amongst people would be the first to cross (this bridge)? He said: They would be the poor amongst the refugees. The Jew said: What would constitute their breakfast when they would enter Paradise? He replied: A caul of the fish-liver. He said: What would be their food after this? He said: A bullock which was fed in the different quarters of Paradise would be slaughtered for them. He said: What would be their drink? He said: They would be given drink from the fountain which is named Salsabil. He said: You have spoken the truth. He said: I have come to ask you about a thing which no one amongst the people on the earth knows except a Prophet or one or two men. He said: Would it benefit you if I tell you that? He said: I would lend ears to that. He said: I have come to ask you about the child. He said: The reproductive substance of man is white and that of woman (i.e. ovum central portion) yellow, and when they come together and the male's substance (chromosomes and genes) prevails upon the female's substance (chromosomes and genes), it is a male child by Allah's Decree, and when the substance of the female prevails upon the substance contributed by the male, it is a female child by the Decree of Allah. The Jew said: What you have said is true; verily you are a Prophet. He then returned and went away. The Messenger of Allah (peace and blessings be upon him) said: He asked me about the things he asked me about, and I had no knowledge of any of them until Allah gave me knowledge of them.