"O you who believe,
be more patient than others,
guard your frontiers,
and fear God
so that you may be successful."
(Al-Qur'an, Surah Aal Imran, Verse 200)
Sabr... to be patient... to hold down and restrain one's self against lashing out at what is undesirable in ways one would later regret.
There is Sabr in executing one's duties. There is Sabr in resisting sin. There is Sabr in facing moments of distress.