أَدِّ الْأَمَانَةَ إِلَى مَنِ ائْتَمَنَكَ، وَلَا تَخُنْ مَنْ خَانَكَ
Return the trust to the one who entrusted you, and do not betray the one who betrayed you.
Source: الترمذي
أَدِّ is a singular imperative: “return” or “fulfil.” الْأَمَانَةَ is its direct object, meaning the property or responsibility placed in trust. ائْتَمَنَكَ means “entrusted you,” and خَانَكَ means “betrayed you.”
The duty to return entrusted property does not depend on how the owner previously treated you. If wronged, a person may seek a proper remedy, but quietly taking the other person’s property as revenge remains a breach of trust.