Quran

وَخُذۡ بِيَدِكَ ضِغۡثٗا فَٱضۡرِب بِّهِۦ وَلَا تَحۡنَثۡۗ إِنَّا وَجَدۡنَٰهُ صَابِرٗاۚ نِّعۡمَ ٱلۡعَبۡدُ إِنَّهُۥٓ أَوَّابٞ

[We said], "And take in your hand a bunch [of grass] and strike with it and do not break your oath." Indeed, We found him patient, an excellent servant. Indeed, he was one repeatedly turning back [to Allah]