At-Tawbah 9:101

وَمِمَّنۡ حَوۡلَكُم مِّنَ ٱلۡأَعۡرَابِ مُنَٰفِقُونَۖ وَمِنۡ أَهۡلِ ٱلۡمَدِينَةِ مَرَدُواْ عَلَى ٱلنِّفَاقِ لَا تَعۡلَمُهُمۡۖ نَحۡنُ نَعۡلَمُهُمۡۚ سَنُعَذِّبُهُم مَّرَّتَيۡنِ ثُمَّ يُرَدُّونَ إِلَىٰ عَذَابٍ عَظِيمٖ 101

And among those around you of the bedouins are hypocrites, and [also] from the people of Madinah. They have become accustomed to hypocrisy. You, [O Muhammad], do not know them, [but] We know them. We will punish them twice [in this world]; then they will be returned to a great punishment