Testing reveals a man's flaws

Nahj al-Balāgha|Volume 1|Book 3|Chapter 434

Book 3, Chapter 434

٤٣٤. وَقَالَ (عليه ‏السلام): اخْبُرْ تَقْلِهِ.

434. Amīr al-mu’minīn, peace be upon him, said: Try (a man) and you will hate him.