Prayer of the Prophet Muhammad said the night before a battle, as recorded in reports about his sayings and actions (ahadith), such as hadith #2661 in Book 4: Kitab al-Jihad of Sahih al-Bukhari, one of the six collections of ahadith considered to be the most reliable by Sunni Muslims. It is from these ahadith that Al-Qa'ida Central (AQC; Qaeda, Qaida) took its name for its media outlet, the Al-Sahab (Clouds) Media Foundation.
Narrated Salim Abu An-Nadr:
(the freed slave of 'Umar bin 'Ubaidullah) I was Umar's clerk. Once Abdullah bin Abi Aufa wrote a letter to 'Umar when he proceeded to Al-Haruriya. I read in it that Allah's Apostle in one of his military expeditions against the enemy, waited till the sun declined and then he got up amongst the people saying, "O people! Do not wish to meet the enemy, and ask Allah for safety, but when you face the enemy, be patient, and remember that Paradise is under the shades of swords." Then he said, "O Allah, the Revealer of the Holy Book, and the Mover of the clouds and the Defeater of the clans, defeat them, and grant us victory over them."