Sunan At-Tirmidhi

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