And whoever disbelieves then do not let his disbelief grieve you O Muhammad (s) do not be concerned with his disbelief. To Us shall be their return and We shall inform them of what they did. Truly God knows best what is in the breasts just as He knows other things and so He will requite them accordingly.
- 31:2323
وَمَنْ كَفَرَ فَلَا يَحْزُنْكَ كُفْرُهُ ۚ إِلَيْنَا مَرْجِعُهُمْ فَنُنَبِّئُهُمْ بِمَا عَمِلُوا ۚ إِنَّ اللَّهَ عَلِيمٌ بِذَاتِ الصُّدُورِ
So do not let the unbelief of disbelievers grieve you. They will be brought back to Us, when We shall tell them what they used to do. Whatever is in their hearts is known to God.
- common.revelation-Meccan
- common.hizb : 165