Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bukhari:2644 – Ādam > Shuʿbah > al-Ḥakam > ʿIrāk b. Mālik > ʿUrwah b. al-Zubayr > ʿĀʾishah > Āstaʾdhan ʿAla Aflaḥ Falam Ādhan Lah > Ataḥtajibīn Minnī > ʿAmmuk Faqult And Kayf Dhalik > Arḍaʿatk Āmraʾah Akhī Bilaban Akhī > Saʾalt

Aflah asked the permission to visit me but I did not allow him. He said, "Do you veil yourself before me although I am your uncle?" ʿAisha said, "How is that?" Aflah replied, "You were suckled by my brother's wife with my brother's milk." I asked Messenger of Allah ﷺ about it, and he said, "Aflah is right, so permit him to visit you."  

البخاري:٢٦٤٤ – حَدَّثَنَا آدَمُ حَدَّثَنَا شُعْبَةُ أَخْبَرَنَا الْحَكَمُ عَنْ عِرَاكِ بْنِ مَالِكٍ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ عَنْ عَائِشَةَ ؓ

قَالَتِ اسْتَأْذَنَ عَلَىَّ أَفْلَحُ فَلَمْ آذَنْ لَهُ فَقَالَ أَتَحْتَجِبِينَ مِنِّي وَأَنَا عَمُّكِ فَقُلْتُ وَكَيْفَ ذَلِكَ قَالَ أَرْضَعَتْكِ امْرَأَةُ أَخِي بِلَبَنِ أَخِي فَقَالَتْ سَأَلْتُ عَنْ ذَلِكَ رَسُولَ اللَّهِ ﷺ فَقَالَ صَدَقَ أَفْلَحُ ائْذَنِي لَهُ  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:15610 – Abū ʿAlī al-Ḥusayn b. Muḥammad al-Rūdhbārī > Abū Bakr Muḥammad b. Aḥmad b. Maḥmawayh al-ʿAskarī > Jaʿfar b. Muḥammad al-Qalānisī > Ādam b. Abū Iyās > Shuʿbah > al-Ḥakam > ʿIrāk b. Mālik > ʿUrwah b. al-Zubayr > ʿĀʾishah

[Machine] He sought permission to visit me, but I did not grant it to him. So, he said, "Are you hiding from me while I am your uncle?" She said, "I asked, how is that?" He said, "My brother's wife breastfed you with my brother’s milk." She said, "So, I asked the Messenger of Allah ﷺ , and he said, 'Verily, he spoke the truth. Allow him to visit you.'"  

البيهقي:١٥٦١٠ – أَخْبَرَنَا أَبُو عَلِيٍّ الْحُسَيْنُ بْنُ مُحَمَّدٍ الرُّوذْبَارِيُّ أنا أَبُو بَكْرٍ مُحَمَّدُ بْنُ أَحْمَدَ بْنِ مَحْمَوَيْهِ الْعَسْكَرِيُّ نا جَعْفَرُ بْنُ مُحَمَّدٍ الْقَلَانِسِيُّ نا آدَمُ بْنُ أَبِي إِيَاسٍ نا شُعْبَةُ نا الْحَكَمُ عَنْ عِرَاكِ بْنِ مَالِكٍ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ عَنْ عَائِشَةَ ؓ قَالَتْ

اسْتَأْذَنَ عَلَيَّ أَفْلَحُ أَخُو أَبِي الْقُعَيْسِ فَلَمْ آذَنْ لَهُ فَقَالَ أَتَحْتَجِبِينَ مِنِّي وَأَنَا عَمُّكِ؟ قَالَتْ قُلْتُ وَكَيْفَ ذَاكَ؟ قَالَ أَرْضَعَتْكِ امْرَأَةُ أَخِي بِلَبَنِ أَخِي قَالَتْ فَسَأَلْتُ رَسُولَ اللهِ ﷺ فَقَالَ صَدَقَ أَفْلَحُ فَائْذَنِي لَهُ  

رَوَاهُ الْبُخَارِيُّ فِي الصَّحِيحِ عَنْ آدَمَ وَأَخْرَجَهُ مُسْلِمٌ مِنْ وَجْهٍ آخَرَ عَنْ شُعْبَةَ