"No one who commits Zina is a believer at the moment when he is committing Zina; no one who steals is a believe at the moment when he is stealing; no one who drinks wine is a believer at the moment when he is drinking it; and no robber is a believer at the moment when he is robbing and the people are looking on. (Using translation from Nasāʾī 4870)  

عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ قَالَ «لَا يَزْنِي الزَّانِي حِينَ يَزْنِي وَهُوَ مُؤْمِنٌ وَلَا يَسْرِقُ السَّارِقُ حِينَ يَسْرِقُ وَهُوَ مُؤْمِنٌ وَلَا يَشْرَبُ الْخَمْرَ حِينَ يَشْرَبُهَا وَهُوَ مُؤْمِنٌ وَلَا يَنْتَهِبُ نُهْبَةً ذَاتَ شَرَفٍ يَرْفَعُ النَّاسُ إِلَيْهِ فِيهَا أَبْصَارَهُمْ وَهُوَ مُؤْمِنٌ»  

When one commits fornication, one is not a believer ; when one steals, one is not a believer ; when one drinks, one is not a believer ; and repentance is placed before him. (Using translation from Abū Dāʾūd 4689)   

قَالَ رَسُولُ اللهِ ﷺ وَقَالَ مُحَمَّدٌ عَنِ النَّبِيِّ ﷺ «لَا يَزْنِي الزَّانِي حِينَ يَزْنِي وَهُوَ مُؤْمِنٌ وَلَا يَسْرِقُ حِينَ يَسْرِقُ وَهُوَ مُؤْمِنٌ وَلَا يَشْرَبُ الْخَمْرَ حِينَ يَشْرَبُ وَهُوَ مُؤْمِنٌ ثُمَّ التَّوْبَةُ مَعْرُوضَةٌ بَعْدُ»  

"No one who commits Zina is a believer at the moment when he is committing Zina; no one who steals is a believer at the moment when he is stealing; no one who drinks wine is a believer at the moment when he is drinking it." - And he mentioned a fourth but I (the narrator) have forgotten it - "When he does that the yoke of Islam is shed from his neck, but if he repents, Allah accepts his repentance." (Using translation from Nasāʾī 4872)  

«لَا يَزْنِي الزَّانِي وَهُوَ مُؤْمِنٌ وَلَا يَسْرِقُ وَهُوَ مُؤْمِنٌ وَلَا يَشْرَبُ الْخَمْرَ وَهُوَ مُؤْمِنٌ وَذَكَرَ رَابِعَةً فَنَسِيتُهَا فَإِذَا فَعَلَ ذَلِكَ خَلَعَ رِبْقَةَ الْإِسْلَامِ مِنْ عُنُقِهِ فَإِنْ تَابَ تَابَ اللهُ عَلَيْهِ»