	According to al-Kindi, Abd al-Aziz introduced an Islamic ritual in Egypt consisting of a sitting held in the mosques during afternoon prayers on the ninth day of Dhu al-Hijjah, the Day of Arafa. Abd al-Aziz opposed a higher tax burden on indigenous Muslim converts. He had been called on by Abd al-Malik to follow the example of the caliph's governor of Iraq and the eastern Caliphate, al-Hajjaj ibn Yusuf, who imposed the poll tax ("jizya") on the inhabitants of his province even after their conversion to Islam. Instead, Abd al-Aziz took the advice of the "qadi" (chief Islamic judge) and treasurer of Egypt, Abd al-Rahman ibn Hubayra, and did not implement the measure.