وَتَوَلَّىٰ عَنْهُمْ وَقَالَ يَٰٓأَسَفَىٰ عَلَىٰ يُوسُفَ وَٱبْيَضَّتْ عَيْنَاهُ مِنَ ٱلْحُزْنِ فَهُوَ كَظِيمٌ

And he turned away from them, and said: O my sorrow for Yusuf! and his eyes became white on account of the grief, and he was a repressor (of grief).