Peace be upon you. Sheikh Ja'far ibn Muhammad ibn Ja'far ibn Hiba Allah, known as Ibn Nama al-Hilli, recorded in his book 'Dhob al-Nidar' that Al-Mukhtar sent for his companions to gather around him, intending to rise against the people of Kufa. A man from his companions, Abdul Rahman ibn Shariq, approached a group including Sa'id ibn Munqidh and others, expressing their intention to seek permission from Muhammad ibn al-Hanafiyyah regarding Al-Mukhtar's claim of coming on their behalf. They sought his approval to follow Al-Mukhtar or to refrain if he advised against it. Upon hearing their request, Muhammad ibn al-Hanafiyyah acknowledged their concerns and expressed his wish for Allah to grant them victory over their enemies. He ultimately directed them to Imam Zain al-Abidin, who granted them permission to act. This narration indicates the Imam's acceptance of the revolution, although it does not imply that he initiated or commanded it. The people sought his approval to fight against the killers of Imam Hussein, reflecting their desire for action. The praise from the Imams for Al-Mukhtar's actions further legitimizes his endeavors. For more details, you can refer to the sources mentioned in the original text.