Committing some sins alter Allah’s Blessings for human being, and replace them with calamities and adversities. These sins, as stated by Imam Al-Sajj¡d (a.s) are: 1. Oppressing people, 2. Losing the good habits 3. Abandoning good doing, 4. Being ungrateful, 5. Abandoning gratefulness.
Oppressing People
Oppressing people is a heinous and satanic sin. Oppression, however as much as a grain, is an obscene deed. Surely, as little as this much sin would be punished in the Hereafter, too:
وَإِنْ كَانَ مِثْقَالَ حَبَّةٍ مِنْ خَرْدَلٍ أَتَيْنَا بِهَا وَكَفَى بِنَا حَاسِبِينَ.
And if there be no more than the weight of a mustard seed We will bring it to account: and enough are We to take account. (21:47)
Losing the Good Habits
The good habits humans incline to, by Allah’s blessings, are really important and valuable and make humans subject to Allah’s Mercy. Humans should be careful and guard these good habits.
After making the habits of gaining knowledge, showing humility, having patience, serving Allah’s servants and so on, human is always subject to dangers and should attempt to maintain his good habits. If human is careless about keeping his good habits, to the extent that they are lost, he has committed sin, for sure, and should expect the alteration of Allah’s blessings in his life.
Abandoning good deeds
Beneficence and doing good to the people are signs of humanity and belief. According to the Qur’¡nic verses, the good-doers are loved by the Almighty.
وَاللَّهُ يُحِبُّ الْمُحْسِنِينَ.
…Allah loves those who do good. (3:134)
People should not abandon their beneficence toward others in any situations. Doing good to the people is, in fact, worshipping Allah. It makes Allah content and its reward is great.
As a matter of fact, abandoning beneficence is a sin, and results in deprivation from a good manner, Allah’s especial Mercy, and countless rewards.
Ungratefulness
Being ungratefulness toward Allah is a sin, which brings about severe chastisement, in the words of Holy Qur’¡n:
وَلَئِنْ كَفَرْتُمْ إِنَّ عَذَابِي لَشَدِيدٌ.
… but if you are thankless, My chastisement is surely terrible. (14:7)
The worst kind of ungratefulness is wasting Allah’s blessings for committing sins and unsuitable wishes.
Abandoning Gratefulness
Being thankful for the Blessings Allah has granted to human to develop physically and mentally is a necessity, and abandoning it is against humanity and fairness.
Thankfulness is indeed acknowledging the Provider and His Blessings, as well as spending the blessings in ways He Himself has ordered.
Thankfulness for the blessing of heart is adorning it with belief in Allah, the Prophets, the Imams, the Holy Qur’¡n, and the Resurrection Day.
Thankfulness for the blessing of eyes is looking at the nature to discover Allah’s Might, using them for gaining knowledge, reciting Qur’¡n, as well as keeping them from unlawful scenes.
Thankfulness for the blessing of ears is hearing the truth, and keeping them from hearing untruth, unlawful music and sounds, backbiting, and slander.
Being thankful for the blessing of tongue is through fine speech, answering fine questions, guiding the misled, reciting Qur’¡n and prayer, and keeping the tongue from lying, backbiting, slander, ungrounded rumors, and belittling Allah’s servants.
Being thankful for the blessing of stomach is eating rightly and lawfully, and avoiding unlawful stuff.
For thanking the blessing of lust, it should be used in lawful marriage and kept away from unlawful issues.
For thanking the blessing of foot, it should be used in going to the mosques and knowledge circles, visiting the relatives and religious brothers, and going to solve people’s problems.
Thankfulness for the blessing of wealth is spending it for one’s wife and children, poor relatives, charity, zakat, khums and alms giving. Evading any of these examples of thankfulness is a sin, which alters Allah’s blessings into chastisement and calamity
.اللَّهُمَّ اغْفِرْ لِىَ الذُّنُوبَ الَّتِى تَحْبِسُ الدُّعَاءَ
O Allah! Forgive me the sins which hold back supplication!
source : a commentary on Kumayl supplication