Surah 4

Surah 4:90

"except those who join a people with whom you have a treaty, or who come to you with their hearts restrained from fighting you or fighting their own people. If God had (so) pleased, He would indeed have given them power over you, and they would indeed have fought you. If they withdraw from you, and do not fight you but offer you peace, God has not made a way for you against them."