4:42
يَوْمَئِذٍۢ يَوَدُّ ٱلَّذِينَ كَفَرُوا۟ وَعَصَوُا۟ ٱلرَّسُولَ لَوْ تُسَوَّىٰ بِهِمُ ٱلْأَرْضُ وَلَا يَكْتُمُونَ ٱللَّهَ حَدِيثًۭا
That Day, those who disbelieved and disobeyed the Messenger will wish they could be covered by the earth. And they will not conceal from Allah a [single] statement.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Allah Wrongs Not Even the Weight of a Speck of Dust
Allah states that He does not treat any of His servants with injustice on the Day of Resurrection, be it the weight of a mustard seed or a speck of dust. Rather, Allah shall reward them for this action and multiply it, if it were a good deed. For instance, Allah said,
وَنَضَعُ الْمَوَزِينَ الْقِسْطَ
(And We shall set up balances of justice) Allah said that Luqman said,
يبُنَىَّ إِنَّهَآ إِن تَكُ مِثْقَالَ حَبَّةٍ مِّنْ خَرْدَلٍ فَتَكُنْ فِى صَخْرَةٍ أَوْ فِى السَّمَـوَتِ أَوْ فِى الاٌّرْضِ يَأْتِ بِهَا اللَّهُ
(O my son! If it be (anything) equal to the weight of a mustard seed, and though it be in a rock, or in the heavens or in the earth, Allah will bring it forth). Allah said,