At Tawbah Ayah 74

يَحْلِفُونَ بِٱللَّهِ مَا قَالُواْ وَلَقَدْ قَالُواْ كَلِمَةَ ٱلْكُفْرِ وَكَفَرُواْ بَعْدَ إِسْلَـٰمِهِمْ وَهَمُّواْ بِمَا لَمْ يَنَالُواْ‌ۚ وَمَا نَقَمُوٓاْ إِلَّآ أَنْ أَغْنَـٰهُمُ ٱللَّهُ وَرَسُولُهُۥ مِن فَضْلِهِۦ‌ۚ فَإِن يَتُوبُواْ يَكُ خَيْرًا لَّهُمْ‌ۖ وَإِن يَتَوَلَّوْاْ يُعَذِّبْهُمُ ٱللَّهُ عَذَابًا أَلِيمًا فِى ٱلدُّنْيَا وَٱلْأَخِرَةِ‌ۚ وَمَا لَهُمْ فِى ٱلْأَرْضِ مِن وَلِىٍّ وَلَا نَصِيرٍ ٧٤ They swear by Allah that they never said anything ?blasphemous?, while they did in fact utter a blasphemy, lost faith after accepting Islam, and plotted what they could not carry out. It is only through resentment that they pay Allah and His Messenger back for enriching them out of His bounty! If they repent, it will be better for them. But if they turn away, Allah will torment them with a painful punishment in this world and the Hereafter, and they will have no one on earth to protect or help them.