Does the verse in Surat An-Nisa, which states that Allah forgives all sins except shirk, include the forgiveness of matters related to the rights of people, even if the wrongdoer does not seek forgiveness from the wronged, and what are the principles of the rights of people?

The verse (Indeed, Allah does not forgive association with Him, but He forgives what is less than that for whom He wills) means that Allah does not forgive shirk (associating partners with Him) for one who dies upon it without repentance. As for sins less than shirk, they are subject to His will. Repentance is obligatory by consensus, and the conditions for repentance from a sin between a servant and his Lord are three: ceasing the sin, regretting it, and resolving not to return to it. As for a sin related to the rights of other people, a fourth condition is added: seeking forgiveness from the person whose right was violated or restoring their right. Islamic law has emphasized the rights of people, such as their lives, property, and honor, which the Prophet collectively mentioned in his saying: "Every Muslim’s blood, property, and honor are sacred to another Muslim." Injustice towards others warrants punishment, and it is divided into withholding rights (negligence) and aggression (doing what harms). Therefore, injustices in these matters will be taken from one's good deeds on the Day of Judgment, and if the good deeds are exhausted, the sins of the wronged person will be cast upon the oppressor.