My foster uncle came and asked permission (to enter) but I refused to admit him till I asked Allah's Apostle about that. He said, "He is your uncle, so allow him to come in." I said, "O Messenger of Allah ﷺ! I have been suckled by a woman and not by a man." Messenger of Allah ﷺ said, "He is your uncle, so let him enter upon you." And that happened after the order of Al-Hijab (compulsory veiling) was revealed. All things which become unlawful because of blood relations are unlawful because of the corresponding foster suckling relations.  

أَنَّهَا قَالَتْ جَاءَ عَمِّي مِنَ الرَّضَاعَةِ فَاسْتَأْذَنَ عَلَىَّ فَأَبَيْتُ أَنْ آذَنَ لَهُ حَتَّى أَسْأَلَ رَسُولَ اللَّهِ ﷺ فَجَاءَ رَسُولُ اللَّهِ ﷺ فَسَأَلْتُهُ عَنْ ذَلِكَ فَقَالَ إِنَّهُ عَمُّكِ فَأْذَنِي لَهُ قَالَتْ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَتْ فَقَالَ رَسُولُ اللَّهِ ﷺ إِنَّهُ عَمُّكِ فَلْيَلِجْ عَلَيْكِ قَالَتْ عَائِشَةُ وَذَلِكَ بَعْدَ أَنْ ضُرِبَ عَلَيْنَا الْحِجَابُ قَالَتْ عَائِشَةُ يَحْرُمُ مِنَ الرَّضَاعَةِ مَا يَحْرُمُ مِنَ الْوِلاَدَةِ  

My foster uncle came to me and sought permission (to enter the house), but I refused him permission until I had solicited the opinion of Messenger of Allah ﷺ. When Messenger of Allah ﷺ came, I said to him: My foster-uncle sought my permission to (enter the house), but I did not permit him, whereupon Messenger of Allah ﷺ said: You better admit your uncle (into the house). I ('A'isha) said: It was the woman who suckled me and not the man. (But he) said: He is your uncle, admit him.  

جَاءَ عَمِّي مِنَ الرَّضَاعَةِ يَسْتَأْذِنُ عَلَىَّ فَأَبَيْتُ أَنْ آذَنَ لَهُ حَتَّى أَسْتَأْمِرَ رَسُولَ اللَّهِ ﷺ فَلَمَّا جَاءَ رَسُولُ اللَّهِ ﷺ قُلْتُ إِنَّ عَمِّي مِنَ الرَّضَاعَةِ اسْتَأْذَنَ عَلَىَّ فَأَبَيْتُ أَنْ آذَنَ لَهُ فَقَالَ رَسُولُ اللَّهِ ﷺ فَلْيَلِجْ عَلَيْكِ عَمُّكِ قُلْتُ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَ إِنَّهُ عَمُّكِ فَلْيَلِجْ عَلَيْكِ  

"Let him in, for he is your paternal uncle." She said: "The woman breast-fed me, not the man." He said: "He is your paternal uncle, so let him visit you."  

أَنَّ أَخَا أَبِي الْقُعَيْسِ اسْتَأْذَنَ عَلَى عَائِشَةَ بَعْدَ آيَةِ الْحِجَابِ فَأَبَتْ أَنْ تَأْذَنَ لَهُ فَذُكِرَ ذَلِكَ لِلنَّبِيِّ ﷺ فَقَالَ ائْذَنِي لَهُ فَإِنَّهُ عَمُّكِ فَقُلْتُ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ فَقَالَ إِنَّهُ عَمُّكِ فَلْيَلِجْ عَلَيْكِ  

"My paternal uncle Aflah asked permission to enter upon me after the (Verse of) Hijab had been revealed, but I did not let him in. The Prophet came to me and I asked him (about that) and he said: 'Let him in, for he is your paternal uncle.' I said: 'O Messenger of Allah, the woman breast-fed me, not the man.' He said: 'Let him in, may your hands be rubbed with dust, for he is your uncle.'"  

قَالَتِ اسْتَأْذَنَ عَلَىَّ عَمِّي أَفْلَحُ بَعْدَ مَا نَزَلَ الْحِجَابُ فَلَمْ آذَنْ لَهُ فَأَتَانِي النَّبِيُّ ﷺ فَسَأَلْتُهُ فَقَالَ ائْذَنِي لَهُ فَإِنَّهُ عَمُّكِ قُلْتُ يَا رَسُولَ اللَّهِ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَ ائْذَنِي لَهُ تَرِبَتْ يَمِينُكِ فَإِنَّهُ عَمُّكِ  

“My uncle through suckling came and asked permission (to enter) but I refused to admit him until I asked the Messenger of Allah. So the Messenger of Allah said: “Let him in since he is your uncle.’” She said: “It is only the woman who suckled me; I was not suckled by the man.’ So he said: ‘Indeed he is your uncle, so let him in.’”  

جَاءَ عَمِّي مِنَ الرَّضَاعَةِ يَسْتَأْذِنُ عَلَىَّ فَأَبَيْتُ أَنْ آذَنَ لَهُ حَتَّى أَسْتَأْمِرَ رَسُولَ اللَّهِ ﷺ فَقَالَ رَسُولُ اللَّهِ ﷺ فَلْيَلِجْ عَلَيْكِ فَإِنَّهُ عَمُّكِ قَالَتْ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَ فَإِنَّهُ عَمُّكِ فَلْيَلِجْ عَلَيْكِ  

X“My paternal uncle through breastfeeding came to visit me and I refused to let him in. The Messenger of Allah said: 'Let your paternal uncle visit you.' I said: 'But it is the woman who breastfed me; the man did not breastfeed me.' He said: 'He is your paternal uncle; let him visit you.”  

جَاءَ عَمِّي مِنَ الرَّضَاعَةِ يَسْتَأْذِنُ عَلَىَّ فَأَبَيْتُ أَنْ آذَنَ لَهُ فَقَالَ رَسُولُ اللَّهِ ﷺ فَلْيَلِجْ عَلَيْكِ عَمُّكِ فَقُلْتُ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَ إِنَّهُ عَمُّكِ فَلْيَلِجْ عَلَيْكِ  

[Machine] The brother of my father's uncle came to seek permission from her after the veil was struck, but she refused to give him permission until the Messenger of Allah ﷺ came and she sought his permission. When the Messenger of Allah ﷺ came, she mentioned that to him. He said, "Did your uncle not come?" She said, "The woman breastfed me and the man did not breastfeed me." He said, "He is your uncle, so let him enter upon you." Aisha considered breastfeeding to establish the relationship similar to that established by birth. They both reported it in Sahih from the Hadith of Hisham bin 'Urwah.  

أَخَا أَبِي الْقُعَيْسِ جَاءَ يَسْتَأْذِنُ عَلَيْهَا بَعْدَمَا ضُرِبَ الْحِجَابُ فَأَبَتْ أَنْ تَأْذَنَ لَهُ حَتَّى يَأْتِيَ رَسُولُ اللهِ ﷺ فَتَسْتَأْذِنَهُ فَلَمَّا جَاءَ رَسُولُ اللهِ ﷺ ذَكَرَتْ ذَلِكَ لَهُ فَقَالَتْ جَاءَ عَمِّي أَخُو أَبِي الْقُعَيْسِ فَرَدَدْتُهُ حَتَّى أَسْتَأْذِنَكَ فَقَالَ أَوَلَيْسَ بِعَمِّكِ؟ قَالَتْ إِنَّمَا أَرْضَعَتْنِي الْمَرْأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ قَالَ إِنَّهُ عَمُّكِ فَيَلِجُ عَلَيْكِ وَكَانَتْ عَائِشَةُ ؓ تُحَرِّمُ مِنَ الرَّضَاعِ مَا تُحَرِّمُ مِنَ الْوِلَادَةِ أَخْرَجَاهُ فِي الصَّحِيحِ مِنْ حَدِيثِ هِشَامِ بْنِ عُرْوَةَ  

"عَنْ عَائِشَةَ قَالَتْ: جَاءَ أَفْلَح أَخُو أبِي القعيس يَسْتَأْذِنُ عَلَيْهَا فَقَالَ: إِنِّي عَمُّهَا فَأَبَتْ أنْ تَأْذَنَ لَهُ، فَلَمَّا دَخَلَ عَلَيْهَا النَّبِيُّ ﷺ ذَكَرَتْ ذَلِكَ لَهُ فَقَالَ: أَفَلَا أَذِنْتِ لِعَمِّكِ؟ قَالَتْ: يَا رَسُولَ اللهِ! إِنَّمَا أَرْضَعَتْنِي الْمَرَأَةُ وَلَمْ يُرْضِعْنِي الرَّجُلُ، قَالَ: فأذني له فإنَّهُ عَمُّكِ تَرِبَتْ يَمِينُكِ، وَكَانَ أبو القعيس أَخَا زَوْجِ المَرْأَةِ الَّتِي أَرْضَعَتْ عَائِشَةَ".