Surah At-Taubah (The Repentance), Verse 13

اَلَا تُقَاتِلُوْنَ قَوْمًا نَّكَثُوْۤا اَیْمَانَهُمْ وَهَمُّوْا بِاِخْرَاجِ الرَّسُوْلِ وَهُمْ بَدَءُوْكُمْ اَوَّلَ مَرَّةٍ اَتَخْشَوْنَهُمْ فَاللّٰهُ اَحَقُّ اَنْ تَخْشَوْهُ اِنْ كُنْتُمْ مُّؤْمِنِیْنَ ۟

Alaa tuqaatiloona qawman nakasooo aimaanahum wa hammoo bi ikhraajir Rasooli wa hum bada'ookum awwala marrah; atakhshawnahum; fallaahu ahaqqu an takhshawhu in kuntum mu'mineen

“Will ye not fight people who violated their oaths, plotted to expel the Messenger, and took the aggressive by being the first (to assault) you? Do ye fear them? Nay, it is Allah Whom ye should more justly fear, if ye believe!”

Quran 9:13 (Yusuf Ali Translation)