Sabr — patience
صَبْرSabr is patience and steadfastness for the sake of Allah: endurance in hardship, constancy in obedience, and restraint from sin.
More
The Qur'an names patience among the most important virtues and promises those who are patient a reward without measure (in meaning, surah 39:10). Patience is advised together with prayer: «Seek help through patience and prayer» (2:153).
Scholars distinguish three kinds of sabr: patience in obedience to Allah (carrying out the commands), patience in refraining from the forbidden, and patience in hardships and trials.
Sabr is neither passivity nor indifference: a person makes an effort and prays, but accepts the inevitable without despair or complaint, trusting in Allah's wisdom.