There was a disagreement between them (i.e. Ibn ʿAbbas and Ibn Az-Zubair) so I went to Ibn ʿAbbas in the morning and said (to him), "Do you want to fight against Ibn Zubair and thus make lawful what Allah has made unlawful (i.e. fighting in Meccas?" Ibn ʿAbbas said, "Allah forbid! Allah ordained that Ibn Zubair and Bani Umaiya would permit (fighting in Mecca), but by Allah, I will never regard it as permissible." Ibn ʿAbbas added. "The people asked me to take the oath of allegiance to Ibn AzZubair. I said, 'He is really entitled to assume authority for his father, Az-Zubair was the helper of the Prophet, his (maternal) grandfather, Abu Bakr was (the Prophet's) companion in the cave, his mother, Asma' was 'Dhatun-Nitaq', his aunt, ʿAisha was the mother of the Believers, his paternal aunt, Khadija was the wife of the Prophet ﷺ , and the paternal aunt of the Prophet ﷺ was his grandmother. He himself is pious and chaste in Islam, well versed in the Knowledge of the Qur'an. By Allah! (Really, I left my relatives, Bani Umaiya for his sake though) they are my close relatives, and if they should be my rulers, they are equally apt to be so and are descended from a noble family.  

النَّاسُ بَايِعْ لاِبْنِ الزُّبَيْرِ فَقُلْتُ وَأَيْنَ بِهَذَا الأَمْرِ عَنْهُ أَمَّا أَبُوهُ فَحَوَارِيُّ النَّبِيِّ ﷺ يُرِيدُ الزُّبَيْرَ وَأَمَّا جَدُّهُ فَصَاحِبُ الْغَارِ يُرِيدُ أَبَا بَكْرٍ وَأُمُّهُ فَذَاتُ النِّطَاقِ يُرِيدُ أَسْمَاءَ وَأَمَّا خَالَتُهُ فَأُمُّ الْمُؤْمِنِينَ يُرِيدُ عَائِشَةَ وَأَمَّا عَمَّتُهُ فَزَوْجُ النَّبِيِّ ﷺ يُرِيدُ خَدِيجَةَ وَأَمَّا عَمَّةُ النَّبِيِّ ﷺ فَجَدَّتُهُ يُرِيدُ صَفِيَّةَ ثُمَّ عَفِيفٌ فِي الإِسْلاَمِ قَارِئٌ لِلْقُرْآنِ وَاللَّهِ إِنْ وَصَلُونِي وَصَلُونِي مِنْ قَرِيبٍ وَإِنْ رَبُّونِي رَبَّنِي أَكْفَاءٌ كِرَامٌ فَآثَرَ التُّوَيْتَاتِ وَالأُسَامَاتِ وَالْحُمَيْدَاتِ يُرِيدُ أَبْطُنًا مِنْ بَنِي أَسَدٍ بَنِي تُوَيْتٍ وَبَنِي أُسَامَةَ وَبَنِي أَسَدٍ إِنَّ ابْنَ أَبِي الْعَاصِ بَرَزَ يَمْشِي الْقُدَمِيَّةَ يَعْنِي عَبْدَ الْمَلِكِ بْنَ مَرْوَانَ وَإِنَّهُ لَوَّى ذَنَبَهُ يَعْنِي ابْنَ الزُّبَيْرِ