Surah An Najm Tafseer

And that his deeds will be seen.

meaning, on the Day of Resurrection,

وَقُلِ اعْمَلُواْ فَسَيَرَى اللَّهُ عَمَلَكُمْ وَرَسُولُهُ وَالْمُوْمِنُونَ وَسَتُرَدُّونَ إِلَى عَـلِمِ الْغَيْبِ وَالشَّهَـدَةِ فَيُنَبِّيُكُمْ بِمَا كُنتُمْ تَعْمَلُونَ

And say:"Do deeds! Allah will see your deeds, and (so will) His Messenger and the believers. And you will be brought back to the All-Knower of the unseen and the seen. Then He will inform you of what you used to do." (9:105),

Then Allah will remind you of your actions and recompense you for them in the best manner, good for good and evil for evil.

Allah's statement here,

ثُمَّ يُجْزَاهُ الْجَزَاء الاَْوْفَى