Unfortunately, Husayn and all his companions were killed.
Unfortunately, Husayn and all his companions were killed. Hadi died in 170 A.H. and was succeeded by Harun ar- Rashid. Harun, in spite of all the fame that he has in advancing sciences and knowledge, was a very tyrannical ruler—especially when it involved the Shi’as and the Ahlu 1-Bayt.
He exiled all the descendants of Imam ‘Ali in Baghdad to Medina; he used to give hefty rewards to the poets who composed verses against the Shi’a Imams; he even made it difficult for the people to visit the grave of Imam Husayn (a.s.) at Karbala. Under such circumstances, Imam Musa al-Kazim strongly urged his followers to refrain from working or cooperating with tyrant rulers and governments. One interesting example is of Safwan bin Mihran al-Jammal.
Once when Safwan came to visit him, the Imam said: “You are a good person except for one thing.” Safwan: “What is it, O Imam?” Imam: ‘’You have rented out your camels to Harun.” Safwan: “O Imam, I have rented them out to him for his journey to Mecca for hajj; and I have not personally gone for taking care of the animals, my employees are going with his caravan.” Imam: “Don’t you have this wish in your heart that may Harun come back alive from this journey so that you may get back your camels and their rental?” Safwan: “Yes, O Imam.” Imam: “O Safwan, one who wishes the tyrants to live longer will be counted as one of them!” There are, however, some cases where Imam Musa al-Kazim allowed a selected few (like ‘Ali bin Yaqtin) to work for Harun’s government only with the condition that they would use their positions to help their fellow Shi’as.
He refused even though he had to suffer a hundred lashes after which he was hanged between two trees. According to Shaykh Mufid, Ibn Abu ‘Umary was put in prison for seventeen years just because he was a follower of the Ahlu 1-Bayt. ‘Ali bin Yaqtin belonged to a prominent Shi’a family in Kufa. After the ‘Abbasid revolution, Harun ar-Rashid offered him the position of minister in his government.