In case you want to read it for yourself, here's the hadith we were quoting:
Sahih al-Bukhari 3329—Narrated Anas: When Abdullah bin Salam heard of the arrival of the Prophet at Al-Madina, he came to him and said, "I am going to ask you about three things which nobody knows except a Prophet:
(1) What is the first portent of the Hour?Allah's Messenger said, "Jibril (Gabriel) has just now told me of their answers." Abdullah said, "He (i.e., Jibril), from amongst all the angels, is the enemy of the Jews." Allah's Messenger said, "As for the first sign of the Hour, it will be a fire that will collect (or gather) the people from the east to the west; the first meal of the people of Paradise will be extra lobe (caudate lobe) of fish-liver. As for the resemblance of the child to its parents: If a man has sexual intercourse with his wife and gets discharge first, the child will resemble the father, and if the woman gets discharge first, the child will resemble her." On that Abdullah bin Salam said, "I testify that you are the Messenger of Allah."
(2) What will be the first meal taken by the people of Paradise?
(3) Why does a child resemble its father, and why does it resemble its maternal uncle (mother's brother)?"