Patience
عَجَبًا لِأَمْرِ الْمُؤْمِنِ إِنَّ أَمْرَهُ كُلَّهُ خَيْرٌ وَلَيْسَ ذَاكَ لِأَحَدٍ إِلَّا لِلْمُؤْمِنِ إِنْ أَصَابَتْهُ سَرَّاءُ شَكَرَ فَكَانَ خَيْرًا لَهُ وَإِنْ أَصَابَتْهُ ضَرَّاءُ صَبَرَ فَكَانَ خَيْرًا لَهُ
Translation
How wonderful is the affair of the believer, for his affairs are all good, and this applies to no one but the believer. If something good happens to him, he is grateful, and that is good for him. If something bad happens to him, he bears it with patience, and that is good for him.
Narrator
Suhaib
Source
Sahih Muslim
Muslim 2999