If the occultation of the twelfth Imam makes an uprising...
If the occultation of the twelfth Imam makes an uprising impossible then no upraising should take place and the concern should be only towards the protection of Shiaism. To bring down a government is the only right of the twelfth Imam. Such an impression is quite wrong and misleading. First: Shias were in no circumstances and under no conditions obliged to bring down the governments of the Bani Abbas dynasty. Shias were and are obliged to obey the Imam.
The Shia ponders, thinks and considers himself under the yoke of twelve Imams, individually and collectively. Even to this day the yoke of the Imamate of the twelfth Imam is around the neck of the Shia. Bani Abbas knew this. They knew that to bring down their government was not the responsibility of a Shia. It depended on the stand and outlook of the Imam of that time.
Obedience of the Shia to their Imam, their love, affection, and faith in him was to Bani Abbas a dread and a matter to take into calculations and something to bestow consideration to. On the other hand, the conduct, character, behavior, abundant knowledge, truth, honesty, up righteousness, straightforwardness, endurance, tolerance, forbearance, and forgiveness of the Imam was in itself an element and a factor that weakened the Bani Abbas politically, socially and morally.
This the Bani Abbas well knew that they very presence of the Imam, whoever he be, was their own weak point because his existence demonstrated what he possessed and what they were deprived of. Whatever qualities and abilities they had, the Bani Abbas caliphs were short of. They lacked. The people too witnessed the same what the Bani Abbas saw. The ability of the people to judge and compare could not be taken away from them.
As they compared, they hated one and liked one; they hated one and honored one; they hated one and obeyed the other. This being out of their power, the Bani Abbas remained always uneasy, harassed, confused, and uncertain. To secure their own rescue from this harassment the easiest thing to do was to detain the very object of fear. This they did. They imprisoned the Imams. They put them under home arrest. They implied secret agents, police to keep a watch on them.
They broke the link of the people with them. Motawakkil brought the tenth Imam, Ali Al-Naqi, from Madina to Samarra so that he may keep a direct watch on him and control his every movement. In any circumstance there was never the question that the Shia would revolt.