Surat Şād - سورة ص

وَخُذْ بِيَدِكَ ضِغْثًا فَاضْرِب بِّهِ وَلَا تَحْنَثْ ۗ إِنَّا وَجَدْنَاهُ صَابِرًا ۚ نِّعْمَ الْعَبْدُ ۖ إِنَّهُ أَوَّابٌ

Muhsin Khan: "And take in your hand a bundle of thin grass and strike therewith (your wife), and break not your oath . Truly! We found him patient. How excellent (a) slave! Verily, he was ever oft-returning in repentance (to Us)!