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Shiavault - a Vault of Shia Islamic Books Nahjul Balagha Part 1, The Sermons Sermon 216: So now, Allah, the Glorified, has…. Delivered at the battle of Siffin. About mutual rights of the ruler and the ruled ومن خطبة له عليه السلام خطبها بصفين So now, Allah, the Glorified, has, by placing me over your affairs, created my right over you, and you too have a right over me like mine over you. A right is very vast in description but very narrow in equitability of action.
It does not accrue to any person unless it accrues against him also, and right does not accrue against a person unless it also accrues in his favour. If there is any right which is only in favour of a person with no (corresponding) right accruing against him it is solely for Allah, the Glorified, and not for His creatures by virtue of His might over His creatures and by virtue of the justice permeating all His decrees.
Of course, He the Glorified, has created His right over creatures that they should worship Him, and has laid upon Himself (the obligation of) their reward equal to several times the recompense as a mark of His bounty and the generosity that He is capable of.
حق الوالي وحق الرعية Then, from His rights, He, the Glorified, created certain rights for certain people against others. He made them so as to equate with one another. Some of these rights produce other rights. Some rights are such that they do not accrue except with others. The greatest of these rights that Allah, the Glorified, has made obligatory is the right of the ruler over the ruled and the right of the ruled over the ruler.
This is an obligation which Allah, the Glorified, has placed on each other. He has made it the basis of their (mutual) affection, and an honour for their religion.