"The Messenger of Allah came to me looking happy and cheerful, and he said: 'Did you not see that Mujazziz looked at Zaid bin Harithah and Usamah and said: These feet belong to one another.'" (Using translation from Nasāʾī 3493)   

دَخَلَ عَلَيَّ رَسُولُ اللَّهِ ﷺ وَأَسَارِيرُ وَجْهِهِ تَبْرُقُ فَقَالَ «أَلَمْ تَرَيْ إِلَى مُجَزِّزٍ أَبْصَرَ آنِفًا زَيْدَ بْنَ حَارِثَةَ وَأُسَامَةَ بْنَ زَيْدٍ فَقَالَ إِنَّ بَعْضَ هَذِهِ الْأَقْدَامِ لِمَنْ بَعْضٍ»  

[Machine] The Messenger of Allah ﷺ came to me with great joy and happiness. He looked at Usama bin Zaid lying down with his father and said, "These feet are similar to each other, and Usama has grown up well."  

دَخَلَ عَلَيَّ رَسُولُ اللَّهِ ﷺ مَسْرُورًا فَرِحًا مِمَّا قَالَ مُجَزِّزٌ الْمُدْلِجِيُّ وَنَظَرَ إِلَى أُسَامَةَ بْنِ زَيْدٍ مُضْطَجِعًا مَعَ أَبِيهِ فَقَالَ «هَذِهِ الْأَقْدَامُ بَعْضُهَا مِنْ بَعْضٍ وَكَانَ مُجَزِّزٌ قَائِفًا»  

The Prophet ﷺ said, "The boy is for (the owner of) the bed and the stone is for the person who commits illegal sexual intercourse.' (Using translation from Bukhārī 6818)  

قَالَ رَسُولُ اللَّهِ ﷺ «الْوَلَدُ لِلْفِرَاشِ وَلِلْعَاهِرِ الْحَجَرُ»  

ʿUtba bin Abu Waqqas took a firm promise from his brother Saʿd bin Abu Waqqas to take the son of the slave-girl of Zamʿa into his custody as he was his (i.e. ʿUtba's) son. In the year of the Conquest (of Mecca) Saʿd bin Abu Waqqas took him, and said that he was his brother's son, and his brother took a promise from him to that effect. 'Abu bin Zamʿa got up and said, "He is my brother and the son of the slave-girl of my father and was born on my father's bed." Then they both went to the Prophet ﷺ Saʿd said, "O Messenger of Allah ﷺ! He is the son of my brother and he has taken a promise from me that I will take him." 'Abu bin Zamʿa said, "(He is) my brother and the son of my father's slave-girl and was born on my father's bed." Messenger of Allah ﷺ said, "The boy is for you. O 'Abu bin Zamʿa." Then the Prophet ﷺ said, "The son is for the bed (i.e. the man on whose bed he was born) and stones (disappointment and deprivation) for the one who has done illegal sexual intercourse." The Prophet ﷺ told his wife Sauda bint Zamʿa to screen herself from that boy as he noticed a similarity between the boy and ʿUtba. So, the boy did not see her till he died. (Using translation from Bukhārī 2053)  

أَخِي وَابْنُ وَلِيدَةَ أَبِي وُلِدَ عَلَى فِرَاشِهِ فَأَتَيَا رَسُولَ اللَّهِ ﷺ فَقَالَ سَعْدٌ يَا رَسُولَ اللَّهِ أَخِي كَانَ عَهِدَ إِلَيَّ فِيهِ وَقَالَ عَبْدُ بْنُ زَمْعَةَ أَخِي وَابْنُ وَلِيدَةَ أَبِي وُلِدَ عَلَى فِرَاشِهِ فَقَالَ رَسُولُ اللَّهِ ﷺ «هُوَ لَكَ يَا عَبْدُ بْنَ زَمْعَةَ الْوَلَدُ لِلْفِرَاشِ وَلِلْعَاهِرِ الْحَجَرُ» ثُمَّ قَالَ رَسُولُ اللَّهِ ﷺ لِسَوْدَةَ بِنْتِ زَمْعَةَ «احْتَجِبِي مِنْهُ» لَمَّا رَأَى مِنْ شَبَهِهِ بِعُتْبَةَ فَمَا رَآهَا حَتَّى لَقِيَ اللَّهَ  

There came a person to the Prophet (may peace he upon him) ) from Banu Fazara and said: My wife has given birth to a child who is black, whereupon Allah's Apostle ﷺ said: Have you any camels? He said: Yes. He again said: What is this colour? He said: They are red. He said: Is there a dusky one among them? He said: Yes, there are dusky ones among them He said: How has it come about? He said: It is perhaps the strain to which it has reverted, whereupon he (the Holy Prophet) said: It is perhaps the strain to which he (the child) has reverted. (Using translation from Muslim 1500a)  

جَاءَ رَجُلٌ مِنْ بَنِي فَزَارَةَ إِلَى النَّبِيِّ ﷺ فَقَالَ إِنَّ امْرَأَتِي وَضَعَتْ غُلَامًا أَسْوَدَ فَقَالَ لَهُ النَّبِيُّ ﷺ «هَلْ لَكَ مِنْ إِبِلٍ» قَالَ نَعَمْ قَالَ «فَمَا أَلْوَانُهَا» قَالَ حُمْرٌ قَالَ «هَلْ فِيهَا مِنْ أَوْرَقَ» قَالَ إِنَّ فِيهَا وُرْقًا قَالَ «فَأَنَّى أَتَاهُ ذَلِكَ» قَالَ عَسَى أَنْ يَكُونَ نَزَعَهُ عِرْقٌ قَالَ «وَهَذَا عَسَى أَنْ يَكُونَ نَزَعَهُ عِرْقٌ»  

"My wife has given birth to a black boy." The Messenger of Allah said: "Do you have camels?" He said: "Yes." He said: "What color are they?" He said: "Red." He said: "Are there any gray ones among them?" He said: "There are some gray ones among them." He said: "Where do you think they come from?" He said: "Perhaps it is hereditary." He said: "Likewise, perhaps this is hereditary." (Using translation from Nasāʾī 3478)  

أَنَّ رَجُلًا مِنْ بَنِي فَزَارَةَ أَتَى رَسُولَ اللَّهِ ﷺ فَقَالَ إِنَّ امْرَأَتِي وَلَدَتْ غُلَامًا أَسْوَدَ فَقَالَ رَسُولُ اللَّهِ ﷺ «هَلْ لَكَ مِنْ إِبِلٍ» قَالَ نَعَمْ قَالَ «فَمَا أَلْوَانُهَا» قَالَ حُمْرٌ قَالَ «فَهَلْ فِيهَا مِنْ أَوْرَقٍ» فَقَالَ إِنَّ فِيهَا لَوُرْقًا قَالَ «فَأَنَّى تَرَاهُ ذَلِكَ» فَقَالَ «عَسَى أَنْ يَكُونَ نَزَعَهُ عِرْقٌ فَقَالَ النَّبِيُّ ﷺ «وَهَذَا عَسَى أَنْ يَكُونَ نَزَعَهُ عِرْقٌ»  

AbuHurayrah heard the Messenger of Allah ﷺ say when the verse about invoking curses came down: Any woman who brings to her family one who does not belong to it has nothing to do with Allah (i.e. expects no mercy from Allah), and Allah will not bring her into His Paradise. Allah, the Exalted, will veil Himself from any man who disowns his child when he looks at him, and disgrace him in the presence of all creatures, first and last. (Using translation from Abū Dāʾūd 2263)  

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ حِينَ أُنْزِلَتْ آيَةُ الْمُلَاعَنَةِ «أَيُّمَا امْرَأَةٍ أَدْخَلَتْ عَلَى قَوْمٍ مَنْ لَيْسَ مِنْهُمْ فَلَيْسَتْ مِنَ اللَّهِ فِي شَيْءٍ وَلَنْ يُدْخِلَهَا اللَّهُ جَنَّتَهُ وَأَيُّمَا رَجُلٍ جَحَدَ وَلَدَهُ وَهُوَ يَنْظُرُ إِلَيْهِ احْتَجَبَ اللَّهُ مِنْهُ وَفَضَحَهُ عَلَى رُءُوسِ الْأَوَّلِينَ وَالْآخِرِينَ»