Sa'id ibn al-Musayyab said:

There were two brothers among the Ansar who shared an inheritance. When one of them asked the other for the portion due to him, he replied: If you ask me again for the portion due to you, all my property will be devoted to the decoration of the Ka'bah.

Umar said to him: The Ka'bah does not need your property. Make atonement for your oath and speak to your brother. I heard the Messenger of Allah ﷺ say: An oath or vow to disobey the Lord, or to break ties of relationship or about something over which one has no control is not binding on you.

حَدَّثَنَا مُحَمَّدُ بْنُ الْمِنْهَالِ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، حَدَّثَنَا حَبِيبٌ الْمُعَلِّمُ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، : أَنَّ أَخَوَيْنِ، مِنَ الأَنْصَارِ كَانَ بَيْنَهُمَا مِيرَاثٌ فَسَأَلَ أَحَدُهُمَا صَاحِبَهُ الْقِسْمَةَ فَقَالَ : إِنْ عُدْتَ تَسْأَلُنِي عَنِ الْقِسْمَةِ فَكُلُّ مَالٍ لِي فِي رِتَاجِ الْكَعْبَةِ . فَقَالَ لَهُ عُمَرُ : إِنَّ الْكَعْبَةَ غَنِيَّةٌ عَنْ مَالِكَ، كَفِّرْ عَنْ يَمِينِكَ وَكَلِّمْ أَخَاكَ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ :
" لاَ يَمِينَ عَلَيْكَ، وَلاَ نَذْرَ فِي مَعْصِيَةِ الرَّبِّ وَفِي قَطِيعَةِ الرَّحِمِ وَفِيمَا لاَ تَمْلِكُ " .