Qur'an, Al-Fath, Surah 48:1-4
Behold! We have given you a clear victory that you may be absolved of the sins of your past and those yet to follow and that the Lord may perfect His favor to you and guide you and assist you with His invincible helping hand. It is but He who fills the hearts of the believers with peace and reassurance and adds strength to their conviction. Allah's are the legions of the heavens and the earth. He alone is the Knowing, Wise.