(26) باب إِذَا عَرَّضَ بِنَفْىِ الْوَلَدِ
Narrated Abu Huraira:
A man came to the Prophet (ﷺ) and said, "O Allah's Messenger (ﷺ)! A black child has been born for me." The Prophet asked him, "Have you got camels?" The man said, "Yes." The Prophet (ﷺ) asked him, "What color are they?" The man replied, "Red." The Prophet (ﷺ) said, "Is there a grey one among them?' The man replied, "Yes." The Prophet (ﷺ) said, "Whence comes that?" He said, "May be it is because of heredity." The Prophet (ﷺ) said, "May be your latest son has this color because of heredity."
Reference: Sahih al-Bukhari 5305
In-book reference: Book 68, Hadith 54
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 63, Hadith 225