Surah At-Taubah (The Repentance), Verse 26

ثُمَّ اَنْزَلَ اللّٰهُ سَكِیْنَتَهٗ عَلٰی رَسُوْلِهٖ وَعَلَی الْمُؤْمِنِیْنَ وَاَنْزَلَ جُنُوْدًا لَّمْ تَرَوْهَا وَعَذَّبَ الَّذِیْنَ كَفَرُوْا وَذٰلِكَ جَزَآءُ الْكٰفِرِیْنَ ۟

Summa anzalal laahu sakeenatahoo 'alaa Rasoolihee wa'alal mu'mineena wa anzala junoodal lam tarawhaa wa azzabal lazeena kafaroo; wa zaalika jazaaa'ul kaafireen

“But Allah did pour His calm on the Messenger and on the Believers, and sent down forces which ye saw not: He punished the Unbelievers; thus doth He reward those without Faith.”

Quran 9:26 (Yusuf Ali Translation)