question #2 Sahih al-Bukhari 3328, Book 60, Hadith 3 : How does the hadith explain the resemblance of a child to its mother?

Um Salama said, “Um Sulaim said, ‘O Allah’s Messenger (ﷺ)! Allah does not refrain from saying the truth! Is
it obligatory for a woman to take a bath after she gets nocturnal discharge?’ He said, ‘Yes, if she
notices the water (i.e. discharge).’ Um Salama smiled and said, ‘Does a woman get discharge?’ Allah’s
Apostle said. ‘Then why does a child resemble (its mother)?”