His creation until he returns to his Lord and detaches himself from his sin and asks for his brother's pardon."

He said: "My master, which sin has neither expiation nor repentance?" So he said: "The dissociation after the allegiance, and the doubt after the certainty, and the polytheism after the faith, and the enmity of the brothers."

So these are the attributes of the falling-short believers, those who say with their tongues what is not in their hearts, the ones falling short in the rights of their brothers, those who doubt regarding them after they recognized them, so they commit by that the sin and the aggression from their falling short in their rights and the holding back from the fulfillment of their needs and the standing for their obedience and their support.

[20] For it was already narrated on the authority of our master al-Sadiq, transcended his might, that he said: "Whoever backbit a believer has already dissociated from God, and God dissociated from him; and whoever looked into their flaws, God does not accept his good deeds; and whoever looked at their sanctuary with the eye of deviation, God afflicts him with blindness; and whoever walked for them with evil is paralyzed; and whoever defamed them is afflicted with leprosy."