إِلَّا الَّذينَ تابوا مِن قَبلِ أَن تَقدِروا عَلَيهِم ۖ فَاعلَموا أَنَّ اللَّهَ غَفورٌ رَحيمٌ

Except for those who return [repenting] before you apprehend them. And know that Allah is Forgiving and Merciful.