Abu Bakr then designated 'Umar as his successor...
Abu Bakr then designated 'Umar as his successor, and the second blow was dealt to the Islamic regime. Even though 'Umar and Abu Bakr were themselves the cause of this deviation, the political organization of Islam was established upon the basic principles which the Prophet laid down: simplicity, equality, and the fair distribution of wealth and prevention of its concentration, just as it had been previously.
'Umar also left and 'Uthman, this incompetent, pseudo-religious old man, took over the reins of rulership, and the instability which had come into being in the foundation of Islamic rule became so strong that the infrastructure of Muhammad (PBUH) was immediately destroyed.
During 'Uthman's rule, the Caliphate was changed into a monarchy and the mud homes of the Islamic rulers were changed into king's palaces; simplicity changed into the splendid ceremony of the court of Mu'awiyah and the extravagant organization of 'Uthman. Abu Dharr, who was the fourth or fifth person who joined Islam, and whose sword had been most effective in assisting the progress of the Islamic movement, saw this deviation.
'Ali, the image of piety and truth, became isolated and the enemies of Islam had found their way into the Caliphate organization and, like termites, they were eating away at Islam. Each of the liberated truth-seekers was driven into a corner and silenced. The day when Abu Bakr pushed Ali aside from the political scene, and he himself sat upon the throne of the Caliphate, Abu Dharr became anxious and terrified.
The future of Islam was black, to his mind, and appeared to be frightful, but he still saw that, at any rate, the caravan of Islam still progressed on its main course and even though an important rightful claim was being disregarded, the Islamic system had not been torn apart. Even though he was incensed and boiling with indignation, he put the seal of silence on his lips.
When the regime of 'Uthman dominated Islam, the humiliated working masses and the helpless were suppressed under the heels of usurers, slave merchants, the wealthy, and aristocrats who were coming and going in the courts of 'Uthman and Mu'awiyah.
Class differences and the concentration of wealth were revived; Islam, threatened with a great danger, was changed from the situation of the Prophet and the simplicity and unpretentiousness of Abu Bakr and 'Umar, who were living like average people or even like the poor and needy.