Abu Huraira (Allah be pleased with him) reported:
A desert Arab came to Allah's Messenger (ﷺ) and said: My wife has given birth to a dark-complexioned child and I have disowned him. Thereupon Allah's Messenger (ﷺ) said: Have you any camels? He said: Yes. He said: What is their colour? He said? They are red. He said: Is there anyone dusky among them? He said: Yes. Allah's Messenger (ﷺ) said: How has it come about? He said: Messenger of Allah, it is perhaps due to the strain to which it has reverted, whereupon the Prophet (ﷺ) said: It (the birth) of the black child may be due to the strain to which he (the child) might have reverted.
وَحَدَّثَنِي أَبُو الطَّاهِرِ، وَحَرْمَلَةُ بْنُ يَحْيَى، - وَاللَّفْظُ لِحَرْمَلَةَ - قَالاَ أَخْبَرَنَا ابْنُ، وَهْبٍ أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّصلى الله عليه وسلم فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ امْرَأَتِي وَلَدَتْ غُلاَمًا أَسْوَدَ وَإِنِّي أَنْكَرْتُهُ . فَقَالَ لَهُ النَّبِيُّ صلى الله عليه وسلم " هَلْ لَكَ مِنْ إِبِلٍ " . قَالَ نَعَمْ . قَالَ " مَا أَلْوَانُهَا " . قَالَ حُمْرٌ . قَالَ " فَهَلْ فِيهَا مِنْ أَوْرَقَ " . قَالَ نَعَمْ . قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " فَأَنَّى هُوَ " . قَالَ لَعَلَّهُ يَا رَسُولَ اللَّهِ يَكُونُ نَزَعَهُ عِرْقٌ لَهُ . فَقَالَ لَهُ النَّبِيُّ صلى الله عليه وسلم " وَهَذَا لَعَلَّهُ يَكُونُ نَزَعَهُ عِرْقٌ لَهُ " .