ما هو أفضل دعاء للامتحان؟

There is no specific supplication for exams. However, since a student needs success and ease, they can supplicate with: "O Ever-Living, O Self-Subsisting, by Your mercy I seek assistance; rectify all my affairs and do not entrust me to my own self for the blink of an eye," and "O Allah, there is no ease except in what You have made easy, and You make the difficult easy if You wish," and "O Allah, guide me and make me steadfast."