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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
malik:27-11 – Mālik > Yaḥyá b. Saʿīd > al-Qāsim b. Muḥammad > Atat al-Jaddatān > Abū Bakr al-Ṣiddīq Faʾarād > Yajʿal al-Sudus Lillatī Min Qibal al-Um

Yahya related to me from Malik from Yahya ibn Said that al-Qasim ibn Muhammad said, "Two grandmothers came to Abu Bakr asSiddiq, and he wanted to give the sixth to the one who was from the mother's side, and a man of the Ansar said, 'What? Are you omitting the one from whom he would inherit if she died while he was alive?' Abu Bakr divided the sixth between them.~  

مالك:٢٧-١١ – وَحَدَّثَنِي عَنْ مَالِكٍ عَنْ يَحْيَى بْنِ سَعِيدٍ عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ

أَنَّهُ قَالَ أَتَتِ الْجَدَّتَانِ إِلَى أَبِي بَكْرٍ الصِّدِّيقِ فَأَرَادَ أَنْ يَجْعَلَ السُّدُسَ لِلَّتِي مِنْ قِبَلِ الأُمِّ فَقَالَ لَهُ رَجُلٌ مِنَ الأَنْصَارِ أَمَا إِنَّكَ تَتْرُكُ الَّتِي لَوْ مَاتَتْ وَهُوَ حَىٌّ كَانَ إِيَّاهَا يَرِثُ فَجَعَلَ أَبُو بَكْرٍ السُّدُسَ بَيْنَهُمَا  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:12342 – Abū Naṣr ʿUmar b. ʿAbd al-ʿAzīz b. Qatādah > Abū ʿAmr b. Nujayd > Muḥammad b. Ibrāhīm al-Būshanjī > Ibn Bukayr > Mālik > Yaḥyá b. Saʿīd > al-Qāsim b. Muḥammad

[Machine] He said, "The two grandmothers came to Abu Bakr Al-Siddiq, and he wanted to give the sixth to the one from the mother's side. A man from the Ansar said to him, 'Why don't you leave it to the one who, if they were to die while he is alive, he would inherit from her?' So Abu Bakr Al-Siddiq placed the sixth between them."  

البيهقي:١٢٣٤٢ – أَخْبَرَنَا أَبُو نَصْرٍ عُمَرُ بْنُ عَبْدِ الْعَزِيزِ بْنِ قَتَادَةَ أنا أَبُو عَمْرِو بْنُ نُجَيْدٍ ثنا مُحَمَّدُ بْنُ إِبْرَاهِيمَ الْبُوشَنْجِيُّ ثنا ابْنُ بُكَيْرٍ ثنا مَالِكٌ عَنْ يَحْيَى بْنِ سَعِيدٍ عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ

أَنَّهُ قَالَ أَتَتِ الْجَدَّتَانِ إِلَى أَبِي بَكْرٍ الصِّدِّيقِ ؓ فَأَرَادَ أَنَ يَجْعَلَ السُّدُسَ لِلَّتِي مِنْ قِبَلِ الْأُمِّ فَقَالَ لَهُ رَجُلٌ مِنَ الْأَنْصَارِ أَمَا إِنَّكَ تَتْرُكُ الَّتِي لَوْ مَاتَتَا وَهُوَ حَيٌّ كَانَ إِيَّاهَا يَرِثُ فَجَعَلَ أَبُو بَكْرٍ الصِّدِّيقُ السُّدُسَ بَيْنَهُمَا