Surah At-Tahrim (The Prohibition), Verse 9

یٰۤاَیُّهَا النَّبِیُّ جَاهِدِ الْكُفَّارَ وَالْمُنٰفِقِیْنَ وَاغْلُظْ عَلَیْهِمْ وَمَاْوٰىهُمْ جَهَنَّمُ وَبِئْسَ الْمَصِیْرُ ۟

Yaaa ayyuhan nabiyyu jaahidil kuffaara walmunaa-fiqeena waghluz 'alaihim; wa ma'waahum jahannamu wa bi'sal maseer

“O Prophet! Strive hard against the Unbelievers and the Hypocrites, and be firm against them. Their abode is Hell,- an evil refuge (indeed).”

Quran 66:9 (Yusuf Ali Translation)