Why did the prophet Yusuf trick his brothers?

The prophet Yusuf (Joseph) tricked his brothers to test their character and to reveal their true feelings of remorse and repentance for their past actions. By placing a silver cup in his brother Benjamin's bag, he aimed to create a situation that would compel his brothers to confront their guilt and demonstrate their loyalty to one another. Ultimately, this act served to reunite the family and highlight the themes of forgiveness and reconciliation in Yusuf's story.