Yahya bin Atiq said: I have read in some writings of Umar bin Abdul Aziz, may Allah have mercy on him: Those people upon whom a house collapsed and it could not be known whose death occurred first, and none of the deceased will inherit from the other; rather, only the heirs of the deceased will be the inheritors.
Hadith Referenceسنن دارمي / من كتاب الفرائض / 3078
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):إسناده صحيح إلى عمر بن عبد العزيز، [مكتبه الشامله نمبر: 3088]
Hadith Takhrijعمر بن عبدالعزیز رحمہ اللہ تک اس اثر کی سند صحیح ہے۔ دیکھئے: [ابن أبى شيبه 11395] ، [عبدالرزاق 19161] ، [ابن منصور 242]