The Reason Why There is a Need for the Imam عليه السلام

And through the same chain of narrators from Muhammad bin Isa from Yunus bin Abdur Rahman from Abi Sabbah from Abi Abdullah عليه السلام that he said: “Indeed Allah, the Blessed and the Mighty, does not leave the earth but that there is a scholar on it who is aware of every excess and deficiency so that if the believers observe excess in something he may return them (to the divine limits) and if they are deficient in something he may complete it for them. And if it had not been so, the affairs of the believers would have been unknown to them.”