After tragedy of Karbala, there were different Shia sects, among them Tawwabin, who felt the Umayyad Caliphate should be overthrown, and it is Imam's duty to lead the rebel. After Zayn al-Abidin's refusal, they gathered around Mokhtar who started his revolt in the name of Muhammad ibn al-Hanafiyyah. According to Shia, Mokhtar first wanted to start his revolt in the name of Ali ibn al-Husayn, only after his rejection he turned to Mohammad ibn Hanafia. It was around this time, when the question of the right of succession between Ali ibn al-Husayn and Muhammad ibn al-Hanafiyyah gained the most attention. Muhammad ibn al-Hanafiyyah was a pious, brave man whom many considered him as their Imam. Other Shiʻi sects said Zayn al-Abedin had the right to inherit the Imamate, as his father, Husayn, had designated him the next Imam. According to Donaldson, Muhammad ibn al-Hanafiyyah said he was more worthy. After the death of Ibn Zubayr, the governor of Medina, Zayn al-Abedin and Muhammad ibn Hanafiyyah agreed to go to Mecca and appeal to the Black Stone of the Kaaba to try to determine which one of them was the true successor. They went to the Kaaba, where the Black Stone was placed. Muhammad prayed for a sign but no answer came. Afterwards, Zayn al-Abedin prayed and the Black Stone became agitated and nearly fell off the wall; thus came the answer that Zayn-al-Abidin was the true Imam after Husayn; an answer which Muhammad accepted.