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
darimi:3089 – Nuʿaym b. Ḥammād > ʿAbd al-ʿAzīz b. Muḥammad > Jaʿfar from his father

[Machine] "That Umm Kulthum and her son Zaid died on the same day, and their mourning processions met on the road, yet neither one of them inherited from the other. And that the people of Harrah did not inherit from each other, and the people of Siffin did not inherit from each other."  

الدارمي:٣٠٨٩ – حَدَّثَنَا نُعَيْمُ بْنُ حَمَّادٍ عَنْ عَبْدِ الْعَزِيزِ بْنِ مُحَمَّدٍ حَدَّثَنَا جَعْفَرٌ عَنْ أَبِيهِ

«أَنَّ أُمَّ كُلْثُومٍ وَابْنَهَا زَيْدًا مَاتَا فِي يَوْمٍ وَاحِدٍ فَالْتَقَتِ الصَّائِحَتَانِ فِي الطَّرِيقِ فَلَمْ يَرِثْ كُلُّ وَاحِدٍ مِنْهُمَا مِنْ صَاحِبِهِ وَأَنَّ أَهْلَ الْحَرَّةِ لَمْ يَتَوَارَثُوا وَأَنَّ أَهْلَ صِفِّينَ لَمْ يَتَوَارَثُوا»  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:12254 – Abū ʿAbd al-Raḥman al-Sulamī > ʿAlī b. ʿUmar al-Ḥāfiẓ > Muḥammad b. al-Qāsim b. Zakariyyā > Hishām b. Yūnus > al-Darāwardī > Jaʿfar b. Muḥammad from his father

[Machine] That Um Kulthum, the daughter of Ali, and her son Zaid both passed away on the same day. The two widows met each other but could not tell which one of them had died first, so they did not inherit from each other. It is also mentioned that the people of Siffin did not inherit from each other, nor did the people of Harrah.  

البيهقي:١٢٢٥٤ – أَخْبَرَنَا أَبُو عَبْدِ الرَّحْمَنِ السُّلَمِيُّ أنا عَلِيُّ بْنُ عُمَرَ الْحَافِظُ ثنا مُحَمَّدُ بْنُ الْقَاسِمِ بْنِ زَكَرِيَّا ثنا هِشَامُ بْنُ يُونُسَ ثنا الدَّرَاوَرْدِيُّ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ عَنْ أَبِيهِ

أَنَّ أُمَّ كُلْثُومٍ بِنْتَ عَلِيٍّ وَابْنَهَا زَيْدًا وَقَعَا فِي يَوْمٍ وَاحِدٍ وَالْتَقَتِ الصَّائِحَتَانِ فَلَمْ يُدْرَ أَيُّهُمَا هَلَكَ قَبْلُ فَلَمْ تَرِثْهُ وَلَمْ يَرِثْهَا وَأَنَّ أَهْلَ صِفِّينَ لَمْ يَتَوَارَثُوا وَأَنَّ أَهْلَ الْحَرَّةِ لَمْ يَتَوَارَثُوا