Al-Anfal 8:45

Ya ayyuha allatheena amanooitha laqeetum fi-atan fathbutoo wathkurooAllaha katheeran laAAallakum tuflihoon

O you who have believed, when you encounter a company [from the enemy forces], stand firm and remember Allāh much that you may be successful.

O you who believe, when you face a group (in battle), stand firm and remember Allah abundantly, so that you may be successful.