The Source of Moral Corruption:

It was mentioned earlier that faith, which is the joy and fortune of the soul, is different from knowledge, which is the pleasure and satisfaction of the intellect. All moral and behavioural corruptions ensue from the absence of faith in one's heart i.e. whatever the intellect and reason have comprehended through rational proofs or the reports of the prophets fails to enter the heart, and the heart is unaware of their truth. One of the doctrines which every `arif, hakim, mutakallim, as well as the laity and the legists, affirm and regard as indubitable is that whatever has come into existence as the result of the stroke(scrub) of the Pen of the absolutely Wise Creator, from the viewpoint of being and perfection to the apportioning of the means of sustenance among creatures and the ordination of their terms of life---everything demonstrates the utmost beauty of design and the utmost perfection of a system which is in complete accordance with the sumum bonum of the creatures and the most complete and perfect system imaginable.

However, each one of them describes this graciousness of God and His absolute wisdom in his own specific language and in accordance with the terminology of his discipline. The `arif says: "It is the shadow of the Absolute Beauty." The hakim says: "The system of the real world is in accordance with a scientific scheme free from any defect and evil; that which is presumed to be evil in particular instances is nothing but a means for the creatures to their deserved degree of perfection." The mutakallim and the legist believe that God's Acts are based upon wisdom and the general good, and man's limited intellect is incapable of comprehending the higher good intrinsic in Divine ordainments. All subscribe to this idea and everyone sets forth an argument to prove it according to his own knowledge and intelligence. But since they do not go beyond words and have not entered the heart, voices of protest and objection can still be heard, and yet the same man, not enjoying the bounty of faith, counters his own words and confutes his own arguments. Moral vices, too, are rooted in this weakness of faith. The one who feels jealous of others and desires for the loss of a good enjoyed by another and harbours spite against those who possess it in his heart, should know that he does not believe that it is in his own interest that God Almighty has not bestowed upon him that favour. Our limited understanding fails to comprehend the wisdom of His determinations. He should realize that he does not have faith in Divine Justice and the justness of His apportioning. Verbally he may declare his belief in the doctrine of Divine Justice. But his declaration is mere words; for the belief in the justness of God is contrary to envy. If you deem Him just, then consider His ordainment to be just too, for the hadith says expressly that the envious man is resentful at God's apportioning of gifts among His creatures and indignant at the favours conferred by Him. In accordance with the Divine instincts inherent in him, man by nature is a lover of justice. Modesty and reverence before justice and hatred and rebellion before injustice are rooted in his nature. However, if an opposite attitude is observed, it is because of a defect in his premises. If he is indignant at the advantages enjoyed by others and is contentious about the Divine apportioning of bounties, it is on account of the fact that lie does not consider it as just, but, God forbid, regards it as unjust and cruel. It is not because he considers the Divine apportioning as just and is yet resentful of it. It is not that he considers the Divine plan(schedule) to be a perfect system and absolutely good and yet is displeased with it. Alas, our faith is not complete and the intellectual proofs have not crossed the limits of reason and intellect to enter the realm of the heart. Faith is not [solely] a matter of utterance. It is not mere reading, discussing, or quoting others; it requires sincerity of intention. One who seeks God succeeds in finding Him. Those who are interested in Divine knowledge, seek it:

Whoso is blind here will be blind in the Hereafter, and yet further front the road. (17:72)

... And he for whom Allah hath not appointed light, for him there is no light. (24:40)

The Practical Remedy for Envy:

Besides the theoretical cure that has been mentioned above, there is a practical remedy also for this hideous vice. It consists of this: Try, forcibly, to be affectionate with the person of whom you are jealous. By making a display of your affection, your purpose should be to cure yourself of this internal malady. Your inner self will ask you to hurt him and malign him. It will demand that you treat him like an enemy and recount to you his vices and mistakes. But you act against the inclinations of your self and be friendly with him. Honour him and respect him and force yourself to speak in his praise. Try to see his virtues yourself and make them known to others too, concentrating upon his good(favorable) qualities. Though your behaviour will be affected(dramatic) and unnatural in the beginning, being artificial and feigned, but since your aim is self-rectification and curing of this vice, your behaviour will gradually become less artificial. Day by day this affectation will be lessened and your self will become accustomed to it and that which was affectation will become reality. You convince your self and make it understand that he is a creature of God; perhaps it is God's grace which has selected him for the advantage that he enjoys. If the object of your envy is a scholar endowed with knowledge and piety, and you are jealous of him due to these merits, your envy is all the more abominable and this enmity will bring you greater harm in the Hereafter. It is for you to make your self understand that they are chosen servants of God, who, through Divine grace, have been distinguished by that great merit and favour. Such a gift ought to make one feel affectionate and kindly towards its possessors, inclining one to respect them and to be humble towards them. Hence, if one perceives that anything that should stir up love and respect in his heart is causing something that is contrary to it, he should know that the baser emotions have overpowered him and their darkness has conquered his inner self. Now it is time for him to positively resolve to get rid of it by all theoretical and practical means. If he tries to stimulate the feelings of love and friendship in his heart, he will succeed soon, since the light of love conquers the darkness of hatred. God Almighty has promised that He will guide those who struggle(scramble) and help them through His invisible grace and increase their capacities: `Indeed He possesses the authority to grant ability and to guide.'

The Tradition Regarding Remission of Envy:

In some of the holy traditions it has been reported from the Prophet (S) that he enumerated nine things from which his Ummah have been granted remission; hasad, in case it is not expressed in one's words or deeds, is one of them. This tradition, and others similar to it, should not, of course, prevent one from seriously uprooting the vicious tree of envy from the self and freeing the soul from this faith- consuming fire. Because, it rarely happens that this vicious thing enters the soul without breeding diverse abominations there, without its signs becoming visible, and without harming one's faith. It is mentioned in sahih ahadith that envy devours faith and is baleful to it, and that God Almighty disowns the envious person and would have nothing to do with him. Therefore, a thing which is a major source of corruption and endangers all that matters to a human being should not be taken lightly due to misunderstanding the Prophetic hadith about remission of the sin of hasad.

Therefore, it is for you to take the matter seriously and snip off its branches and try to rectify yourself. Do not allow its venom to spill over in your outward behaviour, as it will weaken its roots and stop its growth. And if you die during this period of spiritual reform and contest, you will be blessed with Divine Mercy. With His infinite mercy and the boon provided by the spiritual station of the interceding Holy Prophet (S), you will be granted forgiveness. The spark of Divine beneficence will burn up any remaining traces of it, and the soul will be purged and purified.

As to the following tradition narrated by Hamzah ibn Humran:

Abu 'Abd Allah (al-Imam al-Sadiq) (A) said: "There are three things from which neither any prophet nor others below his rank are Immune: doubts about the creation, anticipation of misfortune for others, and envy, although a believer does never make use of them. 

either the statement is hyperbolic, the intention being that these form the most frequent basis of their tribulations, without their being actually subject to these vices; or hasad is used here to connote ghibtah (envy which is free of ill will); or what is meant is the inclination to wish for the loss of some of the advantages enjoyed by infidels who propagate false beliefs. Otherwise, the prophets of God and the saints are free from any taint of hasad in the real sense of the word. A heart which is defiled with moral evils and inner impurities cannot receive Divine inspiration and revelation. Such a heart does not become a mirror of the light of Divine Attributes and the radiance of the Essence. Therefore, this tradition ought to be interpreted in the manner indicated above or in some other fashion, or it should be referred back to its speaker, upon whom be God's peace and benedictions: `And Praise is God's, at the beginning and at the end.'