Sahih al-Bukhari 6847
Narrated Abu Huraira:
A bedouin came to Allah's Messenger (ﷺ) and said, "My wife has delivered a black child." The Prophet (ﷺ) said 
to him, "Have you camels?" He replied, "Yes." The Prophet (ﷺ) said, "What color are they?" He replied, 
"They are red." The Prophet (ﷺ) further asked, "Are any of them gray in color?" He replied, "Yes." The 
Prophet asked him, "Whence did that grayness come?" He said, "I thing it descended from the camel's 
ancestors." Then the Prophet (ﷺ) said (to him), "Therefore, this child of yours has most probably inherited 
the color from his ancestors."
حَدَّثَنَا إِسْمَاعِيلُ، حَدَّثَنِي مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم جَاءَهُ أَعْرَابِيٌّ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ امْرَأَتِي وَلَدَتْ غُلاَمًا أَسْوَدَ‏.‏ فَقَالَ ‏"‏ هَلْ لَكَ مِنْ إِبِلٍ ‏"‏‏.‏ قَالَ نَعَمْ‏.‏ قَالَ ‏"‏ مَا أَلْوَانُهَا ‏"‏‏.‏ قَالَ حُمْرٌ‏.‏ قَالَ ‏"‏ فِيهَا مِنْ أَوْرَقَ ‏"‏‏.‏ قَالَ نَعَمْ‏.‏ قَالَ ‏"‏ فَأَنَّى كَانَ ذَلِكَ ‏"‏‏.‏ قَالَ أُرَاهُ عِرْقٌ نَزَعَهُ‏.‏ قَالَ ‏"‏ فَلَعَلَّ ابْنَكَ هَذَا نَزَعَهُ عِرْقٌ ‏"‏‏.‏