he was patient / he persevered
Form I verb. Past: صَبَرَ, Present: يَصْبِرُ. Related: صَبْرٌ (patience), صَابِرٌ (patient one), صَبُورٌ (very patient - divine name). Imperative: اصْبِرْ (be patient).
The Quran promises that those who are patient will receive their reward without limit (39:10). Patience is consistently linked to ultimate success.