Hadith.4934 - Imam Ali ibn Musa Ar-Ridha (as) wrote to Muhammad ibn Sinan in response to his questions: "Allah (swt) has forbidden the killing of a soul because of the corruption it would cause among creation if it were permitted, leading to their annihilation and the disruption of order. Allah (swt), Blessed and Exalted, has forbidden disobedience to parents because it entails abandoning reverence for Allah (swt), the Mighty and Majestic, and respect for parents. It also involves ingratitude for blessings, the nullification of gratitude, and leads to a decrease and eventual cessation of offspring due to the lack of respect and recognition of parents' rights, the severing of family ties, and the parents' disinterest in their children, resulting in neglecting their upbringing due to the child's failure to honor them. Allah (swt), the Exalted, has forbidden adultery because of the corruption it brings, such as the killing of souls, the loss of lineage, neglect in raising children, the disruption of inheritance, and other forms of corruption that arise from it. And Allah (swt), the Mighty and Majestic, has forbidden the slandering of chaste women because it leads to the corruption of lineage, denial of children, disruption of inheritance, neglect in upbringing, and the loss of relationships and associations. It also includes grave sins and causes that lead to the corruption of creation. Allah (swt) has forbidden the consumption of an orphan's wealth unjustly due to many reasons related to corruption. The foremost of these is that when a person consumes the wealth of an orphan unjustly, it is as if he has contributed to the orphan's death. The orphan is not self-sufficient, cannot manage his own affairs, and has no one to care for him as his parents would. Thus, when his wealth is consumed, it is as though he has been killed, leading him to poverty and destitution, in addition to what Allah (swt) has forbidden and the punishment He has set, as Allah (swt), the Mighty and Majestic, says: 'And let those fear [injustice] who, if they left behind weak offspring, would be fearful for them. So let them fear Allah and speak words of appropriate justice' (Surah An-Nisa 4:9)."" And Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as) said: "Indeed, Allah (swt) has promised two punishments for consuming the wealth of an orphan: a punishment in this world and a punishment in the Hereafter." Thus, the prohibition of consuming the wealth of an orphan ensures the preservation of the orphan, their independence, and the safety of their descendants from facing the same consequences due to the punishment Allah (swt), the Mighty and Majestic, has promised. Additionally, it prevents the orphan from seeking revenge when they grow up and stops the spread of hatred, enmity, and hostility, which could lead to mutual destruction. Allah (swt) has forbidden fleeing from the battlefield because it weakens the religion, shows disregard for the messengers and just Imams (peace be upon them), and results in abandoning their support against enemies. It leads to punishment for denying what they called toward-acknowledging the Lordship (azj) of Allah (swt), establishing justice, and rejecting oppression-thus allowing oppression and corruption to prevail. Moreover, it emboldens the enemy against Muslims, leading to captivity, killing, and the nullification of Allah's (swt) true religion and other forms of corruption. Allah (swt), the Mighty and Majestic, has forbidden reverting to a nomadic life after migration because it entails turning away from religion, abandoning the support of prophets and divine proofs (peace be upon them), and causing corruption while nullifying the rights of those deserving them. This prohibition is not due to merely living in the desert. For this reason, if a person fully understands the religion, it is impermissible for them to live among the ignorant and those who instill fear, as there is a risk they may abandon knowledge, associate with the ignorant, and persist in ignorance. The reason for the prohibition of usury is due to what Allah (swt), the Mighty and Majestic, has forbidden and because of the corruption it brings to wealth. When a person buys one dirham with two dirhams, the value of one dirham is legitimate while the other is invalid. Thus, both selling and buying through usury result in loss for both the buyer and the seller in every case. Therefore, Allah (swt), the Mighty and Majestic, has forbidden usury due to the corruption it causes in wealth, just as He has prohibited handing over wealth to the foolish because of the fear that they would squander it, until their sound judgment is observed. For this reason, Allah (swt), the Mighty and Majestic, has forbidden usury. The sale involving usury is like selling one dirham for two dirhams. The reason for the prohibition of usury, even after clear evidence, is because it reflects disregard for what Allah (swt) has forbidden. It becomes a major sin after clarification, and Allah's (swt) prohibition of it is only due to treating the sacred and forbidden lightly. Taking it lightly leads to disbelief. The reason for the prohibition of deferred usury (riba al-nasi'ah) is because it leads to the loss of kindness, the destruction of wealth, people becoming overly focused on profit, abandoning loans, and neglecting charitable lending, which is a form of kindness. It results in corruption, oppression, and the eventual destruction of wealth."
Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.