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 all his affairs are good. If something good happens to him, he gives thanks and that is good for him. If something bad happens to him, he bears it with patience and that is good for him.
Narrator
Suhayb ibn Sinan
Source
Sahih Muslim
Muslim 2999