Worst act of usury is slandering a believer

📖Sunan Abī Dāwūd 4876
Sa’id ibn Zayd reported: The Prophet, peace and blessings be upon him, said, “Verily, the worst act of usury is to attack the reputation of a Muslim without a just cause.”

The Prophet ﷺ compared slandering or attacking a Muslim’s honor without justification to the gravest form of usury (riba). This shows how seriously Islam regards the dignity of a believer. Just as usury destroys wealth and societies, backbiting and false accusations destroy trust and brotherhood.

What “just cause” means:

• A “just cause” refers to a situation where revealing someone’s faults is necessary for justice, protection, or prevention of harm – not out of hatred or mockery.
• Examples of just cause: warning against a harmful person, giving testimony in court, or advising in marriage/business for protection.
• If such a reason exists, it must be done with sincerity and fairness, not exaggeration or insult.
• Without such a just cause, it becomes a major sin.

What if there is a reason?

• If a genuine reason exists (like protecting someone from harm), Islam allows mentioning faults — but only to the extent necessary.
• Even then, the intention should be justice, not character assassination.
• Beyond what is required, it becomes sinful again.

📖Sahih al-Bukhari 6058
The Prophet ﷺ said: “The worst of people in the sight of Allah on the Day of Resurrection will be the two-faced person, who comes to one group with one face and to another group with another face.

These narrations show that the Prophet ﷺ named people’s faults when it was necessary to protect the believers from harm.

📖Sahih Muslim 1480
Seeking advice – Fatimah bint Qays asked the Prophet ﷺ about suitors for marriage, and he said: Mu’awiyah is poor and Abu Jahm beats women.

→ Here, he mentioned faults (truth) for a valid reason.

What we learn from it today:

1. Slandering and false accusations are spiritually destructive, worse than financial injustice.
2. Honor and reputation in Islam are as sacred as life and property.
3. Speech must be guided by justice – silence is better than dishonor.
4. If criticism is required, it must be fair, truthful, and limited to necessity.
5. Protecting others from harm is valid, but humiliating people is never justified.

Quranic Context:

📖Quran 49:12
O you who have believed, avoid much suspicion. Indeed, some suspicion is sin. And do not spy or backbite each other. Would one of you like to eat the flesh of his brother when dead? You would detest it. And fear Allah; indeed, Allah is accepting of repentance and Merciful.

Attacking reputation without reason is equal to eating the flesh of your brother – disgusting and destructive.

📖Quran 24:15
When you received it with your tongues and said with your mouths that of which you had no knowledge, and you thought it was insignificant while it was, in the sight of Allah, tremendous.

Allah warns that spreading rumors or slander is a major crime, even if we think it is “small talk.

📖Quran 4:148
Allah does not like the public mention of evil except by one who has been wronged. And ever is Allah Hearing and Knowing.
Speaking against someone is only allowed when exposing injustice or wrongdoing. Otherwise, silence is better.