Asma's son, Abdullah, and his cousin, Qasim ibn Muhammad ibn Abu Bakr, were both grandsons of Abu Bakr and nephews of Aisha. When Hussein ibn Ali was killed in Karbala, Abdullah, who had been Hussein's friend, collected the people of Mecca and rose up against Yazid. When he heard about this, Yazid had a silver chain made and sent to Mecca with the intention of having Walid ibn Utbah arrest Abdullah ibn al-Zubayr with it. In Mecca and Medina Hussein's family had a strong support base, and the people were willing to stand up for them. Hussein's remaining family moved back to Madina. Eventually Abdullah consolidated his power by sending a governor to Kufa. Soon Abdullah established his power in Iraq, southern Arabia, the greater part of Syria and parts of Egypt.