Hadith ~ The greatest reward

In the Name of Allah, the Most Gracious, the Most Merciful.

Anas reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "When Allah desires good for one of His slaves, He brings forward the punishment for him in this world. When Allah desires evil for His slave, He withholds from him what is due to him on account of his wrong actions and then settles it on the Day of Rising." The Prophet, may Allah bless him and grant him peace, said, "The greatest reward goes together with the greatest affliction. When Allah Almighty loves people, He tests them. All who are content receive His good pleasure. Those who are angry receive His anger." [at-Tirmidhi]

Riyad as-Salihin (The Meadows of the Righteous) of Iman Mohieddine Annawawi 631-676. Chapter 3:"On Steadfastness ", Hadith No. 43.