Qur'an 3:111

لَن يَضُرُّوكُمْ إِلَّآ أَذًى ۖ وَإِن يُقَـٰتِلُوكُمْ يُوَلُّوكُمُ ٱلْأَدْبَارَ ثُمَّ لَا يُنصَرُونَ

“They will not harm you except for [some] annoyance. And if they fight you, they will show you their backs [i.e., retreat]; then they will not be aided.”

Aal-i-Imraan 3:111 · Saheeh International