Surah An-Nisa' (The Women), Verse 89

وَدُّوْا لَوْ تَكْفُرُوْنَ كَمَا كَفَرُوْا فَتَكُوْنُوْنَ سَوَآءً فَلَا تَتَّخِذُوْا مِنْهُمْ اَوْلِیَآءَ حَتّٰی یُهَاجِرُوْا فِیْ سَبِیْلِ اللّٰهِ فَاِنْ تَوَلَّوْا فَخُذُوْهُمْ وَاقْتُلُوْهُمْ حَیْثُ وَجَدْتُّمُوْهُمْ وَلَا تَتَّخِذُوْا مِنْهُمْ وَلِیًّا وَّلَا نَصِیْرًا ۟

Waddoo law takfuroona kamaa kafaroo fatakoonoona sawaaa'an falaa tattakhizoo minhum awliyaaa'a hattaa yuhaajiroo fee sabeelil laah; fa in tawallaw fa khuzoohum waqtuloohum haisu wajat tumoohum wa laa tattakhizoo minhum waliyyanw wa laa naseeraa

“They but wish that ye should reject Faith, as they do, and thus be on the same footing (as they): But take not friends from their ranks until they flee in the way of Allah (From what is forbidden). But if they turn renegades, seize them and slay them wherever ye find them; and (in any case) take no friends or helpers from their ranks;-”

Quran 4:89 (Yusuf Ali Translation)