At-Tawbah · Ayah 101
وَمِمَّنْ حَوْلَكُم مِّنَ ٱلْأَعْرَابِ مُنَٰفِقُونَ وَمِنْ أَهْلِ ٱلْمَدِينَةِ مَرَدُوا۟ عَلَى ٱلنِّفَاقِ لَا تَعْلَمُهُمْ نَحْنُ نَعْلَمُهُمْ سَنُعَذِّبُهُم مَّرَّتَيْنِ ثُمَّ يُرَدُّونَ إِلَىٰ عَذَابٍ عَظِيمٍ
And among those around you of the bedouins are hypocrites, and [also] from the people of Madīnah. They have persisted in hypocrisy. You, [O Muḥammad], 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.
Quran 9:101 (At-Tawbah) · Saheeh International, Noor International Center (QuranEnc v1.1.2)