Narrated 'Abdullah bin Az-Zubair: from his father who said: "When (the following) was revealed: 'Then, on the Day of Resurrection, you will be disputing before your Lord (39:31).' Az-Zubair said "O Messenger of Allah! We will repeat our disputes after what happened between us in the world?" He said: "Yes." So he said: "Indeed this is a very serious matter."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا سُفْيَانُ، عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَلْقَمَةَ، عَنْ يَحْيَى بْنِ عَبْدِ الرَّحْمَنِ بْنِ حَاطِبٍ، عَنْ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ، عَنْ أَبِيهِ، قَالَ لَمَّا نَزَلَتْ : (ثمَّ إِنَّكُمْ يَوْمَ الْقِيَامَةِ عِنْدَ رَبِّكُمْ تَخْتَصِمُونَ ) قَالَ الزُّبَيْرُ يَا رَسُولَ اللَّهِ أَتُكَرَّرُ عَلَيْنَا الْخُصُومَةُ بَعْدَ الَّذِي كَانَ بَيْنَنَا فِي الدُّنْيَا قَالَ " نَعَمْ " . فَقَالَ إِنَّ الأَمْرَ إِذًا لَشَدِيدٌ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
sunnah.com