Sahih Bukhari | Volume 9 | Hadith Number 417

Narrated by Abu Huraira
A bedouin came to Allah's Apostle and said, "My wife has delivered a black boy, and I suspect that he is not my child." Allah's Apostle said to him, "Have you got camels?" The bedouin said, "Yes." The Prophet said, "What colour are they?" The bedouin said, "They are red." The Prophet said, "Are any of them Grey?" He said, "There are Grey ones among them." The Prophet said, "Whence do you think this colour came to them?" The bedouin said, "O Allah's Apostle! It resulted from hereditary disposition." The Prophet said, "And this (i.e., your child) has inherited his colour from his ancestors." The Prophet did not allow him to deny his paternity of the child.