2 verses have
backs
in Edition Clear Qur'an by Talal Itani / At-Tawba (The Repentance)

9:25God has given you victory in numerous regions; but on the day of Hunayn, your great number impressed you, but it availed you nothing; and the land, as spacious as it was, narrowed for you; and you turned your backs in retreat.

9:35On the Day when they will be heated in the Fire of Hell, then their foreheads, and their sides, and their backs will be branded with them: “This is what you hoarded for yourselves; so taste what you used to hoard.”